1
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Özaslan MS. Some pyrroles as inhibitors of the pentose phosphate pathways enzymes: An in vitro and molecular docking study. J Mol Recognit 2024; 37:e3083. [PMID: 38514991 DOI: 10.1002/jmr.3083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/27/2024] [Accepted: 03/13/2024] [Indexed: 03/23/2024]
Abstract
Glucose-6-phosphate dehydrogenase (G6PD) and 6-phosphogluconate dehydrogenase (6PGD) are pentose phosphate pathway enzymes. Compounds with a heterocyclic pyrrole ring system containing this atom can be derivatized with various functional groups into highly effective bioactive agents. In this study, pyrrole derivatives on these enzyme's activity were investigated. The IC50 values of different concentrations of pyrrole derivatives for G6PD were found in the range of 0.022-0.221 mM Ki values 0.021 ± 0.003-0.177 ± 0.021 and for 6PGD IC50 values 0.020-0.147, mM Ki values 0.013 ± 0.002-0.113 ± 0.030 mM. The 2-acetyl-1-methylpyrrole (1g) showed the best inhibition value for G6PD and 6PGD enzymes. In addition, in silico molecular docking experiments were performed to elucidate how these pyrrole derivatives (1a-g) interact with the binding sites of the target enzymes. The study's findings on pyrrole derivatives could be used to create innovative therapeutics that could be a treatment for many diseases, especially cancer manifestations.
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Affiliation(s)
- Muhammet Serhat Özaslan
- Department of Pharmacy Services, Nihat Delibalta Göle Vocational High School, Ardahan University, Ardahan, Turkey
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2
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Tariq S, Rahim F, Ullah H, Sarfraz M, Hussain R, Khan S, Khan MU, Rehman W, Hussain A, Bhat MA, Farooqi MK, Shah SAA, Iqbal N. Synthesis, In Vitro Biological Evaluation and Molecular Modeling of Benzimidazole-Based Pyrrole/Piperidine Hybrids Derivatives as Potential Anti-Alzheimer Agents. Pharmaceuticals (Basel) 2024; 17:410. [PMID: 38675373 PMCID: PMC11053857 DOI: 10.3390/ph17040410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/15/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
Benzimidazole-based pyrrole/piperidine analogs (1-26) were synthesized and then screened for their acetylcholinesterase and butyrylcholinesterase activities. All the analogs showed good to moderate cholinesterase activities. Synthesized compounds (1-13) were screened in cholinesterase enzyme inhibition assays and showed AChE activities in the range of IC50 = 19.44 ± 0.60 µM to 36.05 ± 0.4 µM against allanzanthane (IC50 = 16.11 ± 0.33 µM) and galantamine (IC50 = 19.34 ± 0.62 µM) and varied BuChE inhibitory activities, with IC50 values in the range of 21.57 ± 0.61 µM to 39.55 ± 0.03 µM as compared with standard allanzanthane (IC50 = 18.14 ± 0.05 µM) and galantamine (IC50 = 21.45 ± 0.21 µM). Similarly, synthesized compounds (14-26) were also subjected to tests to determine their in vitro AChE inhibitory activities, and the results obtained corroborated that all the compounds showed varied activities in the range of IC50 = 22.07 ± 0.13 to 42.01 ± 0.02 µM as compared to allanzanthane (IC50 = 20.01 ± 0.12 µM) and galantamine (IC50 = 18.05 ± 0.31 µM) and varied BuChE inhibitory activities, with IC50 values in the range of 26.32 ± 0.13 to 47.03 ± 0.15 µM as compared to standard allanzanthane (IC50 = 18.14 ± 0.05 µM) and galantamine (IC50 = 21.45 ± 0.21 µM). Binding interactions of the most potent analogs were confirmed through molecular docking studies. The active analogs 2, 4, 10 and 13 established numerous interactions with the active sites of targeted enzymes, with docking scores of -10.50, -9.3, -7.73 and -7.8 for AChE and -8.97, -8.2, -8.20 and -7.6 for BuChE, respectively.
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Affiliation(s)
- Sundas Tariq
- Department of Chemistry, Hazara University, Mansehra 21120, Pakistan; (S.T.); (R.H.); (W.R.)
| | - Fazal Rahim
- Department of Chemistry, Hazara University, Mansehra 21120, Pakistan; (S.T.); (R.H.); (W.R.)
| | - Hayat Ullah
- Institute of Chemistry, University of Okara, Okara 56130, Pakistan;
| | - Maliha Sarfraz
- Department of Zoology, Wildlife and Fisheries, University of Agriculture Faisalabad, Sub-Campus Toba Tek Singh, Toba Tek Singh 36080, Pakistan;
| | - Rafaqat Hussain
- Department of Chemistry, Hazara University, Mansehra 21120, Pakistan; (S.T.); (R.H.); (W.R.)
| | - Shoaib Khan
- Department of Chemistry, Abbottabad University of Science and Technology, Abbottabad 22500, Pakistan;
| | - Misbah Ullah Khan
- Center for Nanosciences, University of Okara, Okara 56130, Pakistan;
| | - Wajid Rehman
- Department of Chemistry, Hazara University, Mansehra 21120, Pakistan; (S.T.); (R.H.); (W.R.)
| | - Amjad Hussain
- Institute of Chemistry, University of Okara, Okara 56130, Pakistan;
| | - Mashooq Ahmad Bhat
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Muhammad Kamran Farooqi
- Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Hongshan District, Wuhan 430074, China;
| | - Syed Adnan Ali Shah
- Faculty of Pharmacy, Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Bandar Puncak Alam 42300, Selangor, Malaysia;
- Atta-ur-Rahman Institute for Natural Product Discovery (AuRIns), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Bandar Puncak Alam 42300, Selangor, Malaysia
| | - Naveed Iqbal
- Department of Chemistry, University of Poonch, Rawalakot 12350, Pakistan;
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3
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Fakayode OJ, Mohlala RL, Ratshiedana R, May BM, Ebenso EE, Feleni U, Nkambule TTI. Electrocatalytic oxidation of pyrrole on a quasi-reversible silver nanodumbbell particle surface for supramolecular porphyrin production. ChemistryOpen 2024:e202300212. [PMID: 38350719 DOI: 10.1002/open.202300212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/12/2024] [Indexed: 02/15/2024] Open
Abstract
Photoactive supramolecular porphyrin assemblies are attractive molecules for light-harvesting applications. This is due to their relatively non-toxicity, biological activities and charge and energy exchange characteristics. However, the extreme cost associated with their synthesis and requirements for toxic organic solvents during purification pose a challenge to the sustainability characteristics of their applications. This work presents the first report on the sustainable synthesis, spectroscopic and photophysical characterizations of a near-infrared (NIR) absorbing Ca(II)-meso-tetrakis (4-hydroxyphenyl)porphyrin using an electrolyzed pyrrole solution. The latter was obtained by cycling the pyrrole solution across the silver nanodumbbell particle surface at room temperature. The electrolyzed solution condensed readily with acidified p-hydroxybenzaldehyde, producing the targeted purple porphyrin. The non-electrolyzed pyrrole solution formed a green substance with significantly different optical properties. Remarkable differences were observed in the voltammograms of the silver nanodumbbell particles and those of the conventional gold electrode during the pyrrole cycling, suggesting different routes of porphyrin formation. The rationale behind these formations and the associated mechanisms were extensively discussed. Metalation with aqueous Ca2+ ion caused a Stokes shift of 38.75 eV. The current study shows the advantage of the electrochemical method towards obtaining sustainable light-harvesting porphyrin at room temperature without the need for high-energy-dependent conventional processes.
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Affiliation(s)
- Olayemi Jola Fakayode
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, 28 Pioneer, Avenue, Roodepoort, 1709, Johannesburg, South Africa
| | - Reagan L Mohlala
- Advanced Material Science Division, Mintek, 200 Malibongwe Drive, Randburg, Johannesburg, South Africa
| | - Rudzani Ratshiedana
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, 28 Pioneer, Avenue, Roodepoort, 1709, Johannesburg, South Africa
| | - Bambesiwe M May
- Advanced Material Science Division, Mintek, 200 Malibongwe Drive, Randburg, Johannesburg, South Africa
| | - Eno E Ebenso
- Centre for Materials Science, College of Science, Engineering and Technology, University of South Africa, Florida Campus, 28 Pioneer Avenue, Roodepoort, 1709, Johannesburg, South Africa
| | - Usisipho Feleni
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, 28 Pioneer, Avenue, Roodepoort, 1709, Johannesburg, South Africa
| | - Thabo T I Nkambule
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, 28 Pioneer, Avenue, Roodepoort, 1709, Johannesburg, South Africa
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Liu Z, Sun W, Hu Z, Wang W, Zhang H. Marine Streptomyces-Derived Novel Alkaloids Discovered in the Past Decade. Mar Drugs 2024; 22:51. [PMID: 38276653 PMCID: PMC10821133 DOI: 10.3390/md22010051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/21/2024] [Accepted: 01/21/2024] [Indexed: 01/27/2024] Open
Abstract
Natural alkaloids originating from actinomycetes and synthetic derivatives have always been among the important suppliers of small-molecule drugs. Among their biological sources, Streptomyces is the highest and most extensively researched genus. Marine-derived Streptomyces strains harbor unconventional metabolic pathways and have been demonstrated to be efficient producers of biologically active alkaloids; more than 60% of these compounds exhibit valuable activity such as antibacterial, antitumor, anti-inflammatory activities. This review comprehensively summarizes novel alkaloids produced by marine Streptomyces discovered in the past decade, focusing on their structural features, biological activity, and pharmacological mechanisms. Future perspectives on the discovery and development of novel alkaloids from marine Streptomyces are also provided.
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Affiliation(s)
| | | | | | | | - Huawei Zhang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (Z.L.); (W.S.); (Z.H.); (W.W.)
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Biswas T, Mittal RK, Sharma V, Kanupriya, Mishra I. Nitrogen-fused Heterocycles: Empowering Anticancer Drug Discovery. Med Chem 2024; 20:MC-EPUB-137053. [PMID: 38192143 DOI: 10.2174/0115734064278334231211054053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/21/2023] [Accepted: 10/31/2023] [Indexed: 01/10/2024]
Abstract
The worldwide impact of cancer is further compounded by the constraints of current anticancer medications, which frequently exhibit a lack of selectivity, raise safety apprehensions, result in significant adverse reactions, and encounter resistance mechanisms. The current situation highlights the pressing need to develop novel and more precise anticancer agents that prioritize safety and target specificity. Remarkably, more than 85% of drugs with physiological activity contain heterocyclic structures or at least one heteroatom. Nitrogen-containing heterocycles hold a significant position among these compounds, emerging as the most prevalent framework within the realm of heterocyclic chemistry. This article explores the medicinal chemistry behind these molecules, highlighting their potential as game-changing possibilities for anticancer medication development. The analysis highlights the inherent structural variety in nitrogen-containing heterocycles, revealing their potential to be customized for creating personalized anticancer medications. It also emphasizes the importance of computational techniques and studies on the relationships between structure and activity, providing a road map for rational medication design and optimization. Nitrogen-containing heterocycles are a promising new area of study in the fight against cancer, and this review summarises the state of the field so far. By utilizing their inherent characteristics and exploiting cooperative scientific investigations, these heterocyclic substances exhibit potential at the forefront of pioneering therapeutic approaches in combating the multifaceted obstacles posed by cancer.
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Affiliation(s)
- Tanya Biswas
- Galgotias College of Pharmacy, Greater Noida, Uttar Pradesh, 201310, India
| | - Ravi K Mittal
- Galgotias College of Pharmacy, Greater Noida, Uttar Pradesh, 201310, India
| | - Vikram Sharma
- Galgotias College of Pharmacy, Greater Noida, Uttar Pradesh, 201310, India
| | - Kanupriya
- Galgotias College of Pharmacy, Greater Noida, Uttar Pradesh, 201310, India
| | - Isha Mishra
- Galgotias College of Pharmacy, Greater Noida, Uttar Pradesh, 201310, India
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6
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Truong MA, Morishita S, Noguchi K, Nakano K. The Synthesis and Properties of Ladder-Type π-Conjugated Compounds with Pyrrole and Phosphole Rings. Molecules 2023; 29:38. [PMID: 38202617 PMCID: PMC10779499 DOI: 10.3390/molecules29010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
The phosphole ring is known as a useful building block for constructing π-conjugated organic materials. Here, we report ladder-type benzophospholo[3,2-b]indole (BPI) derivatives where the phosphole and the pyrrole rings are directly fused. Compounds 8a-8d with different aryl groups on the phosphorous center were successfully synthesized, and the solid-state structure of 8a was confirmed using X-ray crystallographic analysis. The BPIs exhibit relatively high fluorescence quantum yield (Φ 0.50-0.72) and demonstrate a larger Stokes shift compared with a series of benzophospholo[3,2-b]benzoheteroles. The benzophospholo[3,2-b]carbazole derivative 9, which possesses a benzene ring between the phosphole and the pyrrole rings of the BPI, was also synthesized, and its solid-state structure was confirmed using X-ray crystallographic analysis. Compound 9 was found to show a smaller Stokes shift compared with the BPI.
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Affiliation(s)
- Minh Anh Truong
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan; (M.A.T.); (S.M.)
| | - Suzuho Morishita
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan; (M.A.T.); (S.M.)
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan;
| | - Koji Nakano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan; (M.A.T.); (S.M.)
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7
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Tong Z, Smith PJ, Pickford HD, Christensen KE, Anderson EA. Gold-Catalyzed Cyclization of Yndiamides with Isoxazoles via α-Imino Gold Fischer Carbenes. Chemistry 2023; 29:e202302821. [PMID: 37767940 PMCID: PMC10947298 DOI: 10.1002/chem.202302821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 09/29/2023]
Abstract
Gold catalysis is an important method for alkyne functionalization. Here we report the gold-catalyzed formal [3+2] aminative cyclization of yndiamides and isoxazoles in a direct synthesis of polysubstituted diaminopyrroles, which are important motifs in drug discovery. Key to this process is the formation, and subsequent cyclization, of an α-imino gold Fischer carbene, which represents a new type of gold carbene intermediate. The reaction proceeds rapidly under mild conditions, with high regioselectivity being achieved by introducing a subtle steric bias between the nitrogen substituents on the yndiamide. DFT calculations revealed that the key to this regioselectivity was the interconversion of isomeric gold keteniminiun ions via a low-barrier π-complex transition state, which establishes a Curtin-Hammett scenario for isoxazole addition. By using benzisoxazoles as substrates, the reaction outcome could be switched to a formal [5+2] cyclization, leading to 1,4-oxazepines.
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Affiliation(s)
- Zixuan Tong
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Philip J. Smith
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Helena D. Pickford
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Kirsten E. Christensen
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Edward A. Anderson
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
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Borisova B, Vladimirova S, Nocheva H, Laronze-Cochard M, Gérard S, Petrin S, Danalev D. Synthesis, Hydrolytic Stability and In Vivo Biological Study of Bioconjugates of the Tetrapeptides FELL Containing Pyrrole Moiety. Biomedicines 2023; 11:3265. [PMID: 38137486 PMCID: PMC10740831 DOI: 10.3390/biomedicines11123265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND Bioconjugates are promising alternatives for the multiple targeting of any disease. Pyrrole heterocycle is well known with many activities and is a building block of a lot of medical drugs. On the other hand, peptides are short molecules with many advantages such as small size, ability to penetrate the cell membrane and bond-specific receptors, vectorizing potential, etc. Thus, hybrid molecules between peptide and pyrrole moiety could be a promising alternative as an anti-pain tool. METHODS New bioconjugates with a general formula Pyrrole (α-/β-acid)-FELL-OH (NH2) were synthesized using Fmoc/OtBu peptide synthesis on solid support. HPLC was used to monitor the purity of newly synthesized bioconjugates. Their structures were proven by electrospray ionization mass spectrometry. The Paw Pressure test (Randall-Selitto test) was used to examinate the analgesic activity. Hydrolytic stability of targeted structures was monitored in three model systems with pH 2.0, 7.4 and 9.0, including specific enzymes by means of the HPLC-UV method. RESULTS The obtained results reveal that all newly synthesized bioconjugates have analgesic activity according to the used test but free pyrrole acids have the best analgesic activity. CONCLUSIONS Although free pyrrole acids showed the best analgesic activity, they are the most unstable for hydrolysis. Combination with peptide structure leads to the hydrolytic stabilization of the bioconjugates, albeit with slightly reduced activity.
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Affiliation(s)
- Boryana Borisova
- Biotechnology Department, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (B.B.); (S.P.)
| | - Stanislava Vladimirova
- Organic Synthesis Department, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria;
| | - Hristina Nocheva
- Department of Physiology and Pathophysiology, Faculty of Medicine, Medical University-Sofia, Sv. Georgi Sofiyski Blvd 1, 1431 Sofia, Bulgaria;
| | - Marie Laronze-Cochard
- Institut de Chimie Moléculaire de Reims (ICMR)—UMR CNRS 7312, Université de Reims Champagne-Ardenne, UFR Pharmacie, 51 rue Cognacq-Jay, 51100 Reims, France; (M.L.-C.); (S.G.)
| | - Stéphane Gérard
- Institut de Chimie Moléculaire de Reims (ICMR)—UMR CNRS 7312, Université de Reims Champagne-Ardenne, UFR Pharmacie, 51 rue Cognacq-Jay, 51100 Reims, France; (M.L.-C.); (S.G.)
| | - Stoyko Petrin
- Biotechnology Department, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (B.B.); (S.P.)
| | - Dancho Danalev
- Biotechnology Department, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd, 1756 Sofia, Bulgaria; (B.B.); (S.P.)
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Heydari M, Rahbar N, Gholoobi A, Mohammadinejad A, Rezayi M. Designing a label-free electrochemical aptasensor based on poly pyrrole-l-cysteine-reduced graphene oxide nanocomposite for detection of 25-hydroxyvitamin D 3. Biotechnol Appl Biochem 2023; 70:1881-1894. [PMID: 37365980 DOI: 10.1002/bab.2490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 06/15/2023] [Indexed: 06/28/2023]
Abstract
Reliable and precise quantification of 25-hydroxyvitamin D3 in clinical samples is vital because vitamin D3 deficiency lead to several disorders, such as mental illness, osteoporosis, and coronavirus disease. Herein, we report the fabrication of a novel electrochemical aptasensor using a nanocomposite, including reduced graphene oxide, pyrrole, and l-cysteine, for the sensitive detection of 25-hydroxyvitamin D3 . Subsequently, the aptamer of 25-hydroxyvitamin D3 was immobilized on the surface of the modified electrode. Differential pulse voltammetry signals were utilized for studying the binding and measurement of 25-hydroxyvitamin D3 based on the oxidation peak. Under the optimum conditions, the designed electrochemical aptasensor exhibited a linear detection range of 0.001-150 nM, with a limit of detection of 0.006 nM. Furthermore, the proposed aptasensor selectively detected 25-hydroxyvitamin D3 compared to other analogs. Moreover, this aptasensor was successfully applied for the detection of 25-hydroxyvitamin D3 in human serum samples, which were quantified by the enzyme-linked immunosorbent assay method. The acceptable recoveries of 82.67%-111.07% demonstrated that this proposed electrochemical aptasensor can be a promising alternative for clinical methods of vitamin D determination.
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Affiliation(s)
- Maryam Heydari
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nadereh Rahbar
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Medicinal Chemistry Departments, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Aida Gholoobi
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Metabolic Syndrome Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arash Mohammadinejad
- Department of Medical Biotechnology and Nanotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Rezayi
- Metabolic Syndrome Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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10
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He Y, Li Z, Su H, Sun Y, Shi W, Yi Y, Ge D, Fan Z. Pyrrole-Doped Polydopamine-Pyrrole (PDA-nPY) Nanoparticles with Tunable Size and Improved NIR Absorption for Photothermal Therapy. Pharmaceuticals (Basel) 2023; 16:1642. [PMID: 38139769 PMCID: PMC10747104 DOI: 10.3390/ph16121642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/12/2023] [Accepted: 11/16/2023] [Indexed: 12/24/2023] Open
Abstract
Polydopamine (PDA) as a melanin-like biomimetic material with excellent biocompatibility, full spectrum light absorption capacity and antioxidation property has been extensively applied in the biomedical field. Based on the high reactivity of dopamine (DA), exploiting new strategies to fabricate novel PDA-based nano-biomaterials with controllable size and improved performance is valuable and desirable. Herein, we reported a facile way to synthesize pyrrole-doped polydopamine-pyrrole nanoparticles (PDA-nPY NPs) with tunable size and enhanced near-infrared (NIR) absorption capacity through self-oxidative polymerization of DA with PY in an alkaline ethanol/H2O/NH4OH solution. The PDA-nPY NPs maintain excellent biocompatibility and surface reactivity as PDA. By regulating the volume of added PY, PDA-150PY NPs with a smaller size (<100 nm) and four-fold higher absorption intensity at 808 nm than that of PDA can be successfully fabricated. In vitro and in vivo experiments effectively further demonstrate that PDA-150PY NPs can effectively inhibit tumor growth and completely thermally ablate a tumor. It is believed that these PY doped PDA-nPY NPs can be a potential photothermal (PT) agent in biomedical application.
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Affiliation(s)
- Yuan He
- Department of Cardiothoracic Surgery, The 909th Hospital, School of Medicine, Xiamen University, Zhangzhou 363005, China;
- Institute of Materia Medica & College of Life Science and Technology, Xinjiang University, Urumqi 830017, China
| | - Ziyang Li
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen 361005, China; (Z.L.); (H.S.); (Y.S.); (W.S.)
| | - Huiling Su
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen 361005, China; (Z.L.); (H.S.); (Y.S.); (W.S.)
| | - Yanan Sun
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen 361005, China; (Z.L.); (H.S.); (Y.S.); (W.S.)
| | - Wei Shi
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen 361005, China; (Z.L.); (H.S.); (Y.S.); (W.S.)
| | - Yunfeng Yi
- Department of Cardiothoracic Surgery, The 909th Hospital, School of Medicine, Xiamen University, Zhangzhou 363005, China;
| | - Dongtao Ge
- The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen 361005, China; (Z.L.); (H.S.); (Y.S.); (W.S.)
| | - Zhongxiong Fan
- Institute of Materia Medica & College of Life Science and Technology, Xinjiang University, Urumqi 830017, China
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11
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Kuzovlev AS, Zybalov MD, Golovin AV, Gureev MA, Kasatkina MA, Biryukov MV, Belik AR, Silonov SA, Yunin MA, Zigangirova NA, Reshetnikov VV, Isakova YE, Porozov YB, Ivanov RA. Naphthyl-Substituted Indole and Pyrrole Carboxylic Acids as Effective Antibiotic Potentiators-Inhibitors of Bacterial Cystathionine γ-Lyase. Int J Mol Sci 2023; 24:16331. [PMID: 38003521 PMCID: PMC10671052 DOI: 10.3390/ijms242216331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
Over the past decades, the problem of bacterial resistance to most antibiotics has become a serious threat to patients' survival. Nevertheless, antibiotics of a novel class have not been approved since the 1980s. The development of antibiotic potentiators is an appealing alternative to the challenging process of searching for new antimicrobials. Production of H2S-one of the leading defense mechanisms crucial for bacterial survival-can be influenced by the inhibition of relevant enzymes: bacterial cystathionine γ-lyase (bCSE), bacterial cystathionine β-synthase (bCBS), or 3-mercaptopyruvate sulfurtransferase (MST). The first one makes the main contribution to H2S generation. Herein, we present data on the synthesis, in silico analyses, and enzymatic and microbiological assays of novel bCSE inhibitors. Combined molecular docking and molecular dynamics analyses revealed a novel binding mode of these ligands to bCSE. Lead compound 2a manifested strong potentiating activity when applied in combination with some commonly used antibiotics against multidrug-resistant Acinetobacter baumannii, Pseudomonas aeruginosa, and methicillin-resistant Staphylococcus aureus. The compound was found to have favorable in vitro absorption, distribution, metabolism, excretion, and toxicity parameters. The high effectiveness and safety of compound 2a makes it a promising candidate for enhancing the activity of antibiotics against high-priority pathogens.
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Affiliation(s)
- Andrey S. Kuzovlev
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
| | - Mikhail D. Zybalov
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
| | - Andrey V. Golovin
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 1/73 Leninskie gori St., 119234 Moscow, Russia;
- Laboratory of Bioinformatics, Center of AI and Information Technologies, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.A.G.); (Y.B.P.)
| | - Maxim A. Gureev
- Laboratory of Bioinformatics, Center of AI and Information Technologies, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.A.G.); (Y.B.P.)
- Laboratory of Bio- and Chemoinformatics, Institute of Biodesign and Modeling of Complex Systems, I.M. Sechenov First Moscow State Medical University, 8/2 Trubetskaya, 119991 Moscow, Russia
| | - Mariia A. Kasatkina
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
| | - Mikhail V. Biryukov
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
- Faculty of Biology, Lomonosov Moscow State University, 1/12 Leninskie gori St., 119234 Moscow, Russia
| | - Albina R. Belik
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
| | - Sergey A. Silonov
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky Ave., 194064 St. Petersburg, Russia
| | - Maxim A. Yunin
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
| | - Nailya A. Zigangirova
- Medical Microbiology Department, Laboratory of Chlamydiosis, National Research Center for Epidemiology and Microbiology Named after N. F. Gamaleya, 18 Gamaleya St., 123098 Moscow, Russia;
| | - Vasiliy V. Reshetnikov
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
- Institute of Cytology and Genetics, Siberian Branch of RAS, 10 Akademika Lavrentyeva, 630090 Novosibirsk, Russia
| | - Yulia E. Isakova
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
| | - Yuri B. Porozov
- Laboratory of Bioinformatics, Center of AI and Information Technologies, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.A.G.); (Y.B.P.)
- Laboratory of Bio- and Chemoinformatics, Institute of Biodesign and Modeling of Complex Systems, I.M. Sechenov First Moscow State Medical University, 8/2 Trubetskaya, 119991 Moscow, Russia
| | - Roman A. Ivanov
- Translational Medicine Research Center, Sirius University of Science and Technology, Olympic Ave. 1, 354340 Sochi, Russia; (M.D.Z.); (M.A.K.); (M.V.B.); (A.R.B.); (S.A.S.); (M.A.Y.); (V.V.R.); (Y.E.I.); (R.A.I.)
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12
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Moreno-Suárez E, Avila-Acosta R, Sánchez-Ramírez K, Castillo JC, Macías MA. Crystallographic, spectroscopic and thermal studies of 1-(4-bromophenyl)-5-(2,5-dimethyl-1H-pyrrol-1-yl)-3-methyl-1H-pyrazole. Acta Crystallogr C Struct Chem 2023; 79:472-479. [PMID: 37874208 DOI: 10.1107/s2053229623009221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 10/19/2023] [Indexed: 10/25/2023] Open
Abstract
The new title pyrrole-pyrazole derivative, C16H16BrN3, was synthesized through a citric acid-catalyzed Paal-Knorr reaction between acetonylacetone and 1-(4-bromophenyl)-3-methyl-1H-pyrazol-5-amine under mild reaction conditions. This synthetic protocol is noteworthy for its utilization of stoichiometric amounts of the reactants, an ecofriendly solvent and a cost-effective, non-toxic and biodegradable organocatalyst. A comprehensive understanding of the molecular structure was gained through spectroscopic, thermal and X-ray crystallographic analyses. The crystal structure is characterized by weak interactions, where only C-H...π connections contribute to the hydrogen-bond contacts. The supramolecular assembly is controlled by dispersion forces. However, the energy frameworks demonstrate that these forces act in three dimensions, providing enough stability, as observed in TGA-DSC (thermogravimetric analysis-differential scanning calorimetry) studies.
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Affiliation(s)
- Erika Moreno-Suárez
- Disciplinary Elective V, Escuela de Ciencias Química, Universidad Pedagógica y Tecnológica de Colombia, Avenida Central del Norte 39-115, Tunja 150003, Colombia
| | - Rafael Avila-Acosta
- Disciplinary Elective V, Escuela de Ciencias Química, Universidad Pedagógica y Tecnológica de Colombia, Avenida Central del Norte 39-115, Tunja 150003, Colombia
| | - Karen Sánchez-Ramírez
- Disciplinary Elective V, Escuela de Ciencias Química, Universidad Pedagógica y Tecnológica de Colombia, Avenida Central del Norte 39-115, Tunja 150003, Colombia
| | - Juan Carlos Castillo
- Disciplinary Elective V, Escuela de Ciencias Química, Universidad Pedagógica y Tecnológica de Colombia, Avenida Central del Norte 39-115, Tunja 150003, Colombia
| | - Mario A Macías
- Crystallography and Chemistry of Materials, CrisQuimMat, Chemistry Department, Universidad de Los Andes, Cra. 1 No. 18A-12, Bogotá 111711, Colombia
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13
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Ma Z, Udamulle Gedara CM, Wang H, Biewer MC, Stefan MC. Chalcogenopheno[3,2- b] pyrrole-Containing Donor-Acceptor-Donor Organic Semiconducting Small Molecules for Organic Field-Effect Transistors. ACS Appl Mater Interfaces 2023; 15:46119-46129. [PMID: 37738113 DOI: 10.1021/acsami.3c09130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
A group of chalcogenopheno[3,2-b]pyrroles, including thieno[3,2-b]pyrrole (TP), furo[3,2-b]pyrrole (FP), and selenopheno[3,2-b]pyrrole (SeP), and thieno[3,2-b]thiophene (TT) electron-donating units were coupled with a thiophene-flanked diketopyrrolo[3,4-c]pyrrole (ThDPP) acceptor to generate four donor-acceptor-donor (D-A-D) semiconducting small molecules (ThDPP-TT, ThDPP-FP, ThDPP-TP, and ThDPP-SeP). This study systematically investigated the differences between chalcogenopheno[3,2-b]pyrroles and TT. From the characterizations, chalcogenopheno[3,2-b]pyrrole-containing molecules showed lower band gaps and binding-energy cold crystallization behavior. The enthalpies of cold crystallization were correlated with the weight of the chalcogen in ThDPP-FP, ThDPP-TP, and ThDPP-SeP, which were evaluated as intermolecular chalcogen-bond interactions between chalcogen and pyrrole nitrogen in chalcogenopheno[3,2-b]pyrroles. A stronger chalcogen bond interaction resulted in stronger self-aggregation in thin films with thermal treatment, which resulted in a polycrystalline structure in chalcogenopheno[3,2-b]pyrrole-containing molecules. For the application in an organic field-effect transistor, all four molecules showed good performance with the highest hole mobilities as 6.33 × 10-3 cm2 V-1 s-1 for ThDPP-TT, 2.08 × 10-2 cm2 V-1 s-1 for ThDPP-FP, 1.87 × 10-2 cm2 V-1 s-1 for ThDPP-TP, and 6.32 × 10-3 cm2 V-1 s-1 for ThDPP-SeP, and the change of mobility is well correlated to the root-mean-square roughness of the thin films. Overall, all the chalcogenopheno[3,2-b]pyrrole-containing molecules showed lower band gaps, polymorphism, and better charge transport properties compared to TT-containing molecules, which motivates replacing TT with chalcogenopheno[3,2-b]pyrroles in conjugated polymers, non-fullerene small molecular acceptors, and narrow-band-gap donors.
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Affiliation(s)
- Ziyuan Ma
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Chinthaka M Udamulle Gedara
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Hanghang Wang
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Michael C Biewer
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Mihaela C Stefan
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
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14
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Tani H, Yamaga M, Sekiya T, Isohama Y, Koshino H, Nogawa T, Yamaki A, Takahashi S. Identification of a New Pyrrolyl Pyridoindole Alkaloid, Mel pyrrole, and Flazin from Honey and Their Cough-Suppressing Effect in Guinea Pigs. J Agric Food Chem 2023; 71:13805-13813. [PMID: 37683090 DOI: 10.1021/acs.jafc.3c03864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
The cough-suppressing effect of honey was demonstrated for the first time using a guinea pig model whereby cough was induced by citric acid and capsaicin, and a new pyrrolyl pyridoindole, 1-(5-(hydroxymethyl)-1H-pyrrol-2-yl)-9H-pyrido[3,4-b]indole-3-carboxylic acid (1), named melpyrrole, and flazin (2) were identified as the active principle components. The structures of 1 and 2 were estimated using a combination approach of an activity-guided survey and LC-MS/MS multivariate analysis and were finally established by total synthesis of 1 and comparison with an authentic standard for 2. Both compounds showed antitussive activity comparable to that of dextromethorphan in guinea pigs. Their antitussive effects were unaffected by an opioid antagonist and reversed by a nitric oxide (NO) synthase inhibitor, indicating that these natural products do not act directly on opiate receptors but through the NO signaling pathway.
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Affiliation(s)
- Hiroko Tani
- Institute for Bee Products & Health Science, Yamada Bee Company, Inc., 194 Ichiba, Kagamino-cho, Okayama 708-0393, Japan
| | - Masayuki Yamaga
- Institute for Bee Products & Health Science, Yamada Bee Company, Inc., 194 Ichiba, Kagamino-cho, Okayama 708-0393, Japan
| | - Tomoki Sekiya
- Laboratory of Applied Pharmacology, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yoichiro Isohama
- Laboratory of Applied Pharmacology, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Hiroyuki Koshino
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Toshihiko Nogawa
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Ayanori Yamaki
- Institute for Bee Products & Health Science, Yamada Bee Company, Inc., 194 Ichiba, Kagamino-cho, Okayama 708-0393, Japan
| | - Shunya Takahashi
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
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15
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Garberová M, Potočňák I, Tvrdoňová M, Majirská M, Bago-Pilátová M, Bekešová S, Kováč A, Takáč P, Khiratkar K, Kudličková Z, Elečko J, Vilková M. Derivatives Incorporating Acridine, Pyrrole, and Thiazolidine Rings as Promising Antitumor Agents. Molecules 2023; 28:6616. [PMID: 37764394 PMCID: PMC10537105 DOI: 10.3390/molecules28186616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 09/10/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Derivatives combining acridine, pyrrole, and thiazolidine rings have emerged as promising candidates in the field of antitumor drug discovery. This paper aims to highlight the importance of these three structural motifs in developing potent and selective anticancer agents. The integration of these rings within a single molecule offers the potential for synergistic effects, targeting multiple pathways involved in tumor growth and progression. Spiro derivatives were efficiently synthesized in a two-step process starting from isothiocyanates and 2-cyanoacetohydrazide. The thiourea side chain in spiro derivatives was utilized as a key component for the construction of the thiazolidine-4-one ring through regioselective reactions with bifunctional reagents, namely methyl-bromoacetate, dietyl-acetylenedicarboxylate, ethyl-2-bromopropionate, and ethyl-2-bromovalerate. These reactions resulted in the formation of a single regioisomeric product for each derivative. Advanced spectroscopic techniques, including 1D and 2D NMR, FT-IR, HRMS, and single-crystal analysis, were employed to meticulously characterize the chemical structures of the synthesized derivatives. Furthermore, the influence of these derivatives on the metabolic activity of various cancer cell lines was assessed, with IC50 values determined via MTT assays. Notably, derivatives containing ester functional groups exhibited exceptional activity against all tested cancer cell lines, boasting IC50 values below 10 μM. Particularly striking were the spiro derivatives with methoxy groups at position 3 and nitro groups at position 4 of the phenyl ring. These compounds displayed remarkable selectivity and exhibited heightened activity against HCT-116 and Jurkat cell lines. Additionally, 4-oxo-1,3-thiazolidin-2-ylidene derivatives demonstrated a significant activity against MCF-7 and HCT-116 cancer cell lines.
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Affiliation(s)
- Monika Garberová
- Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia; (M.G.); (I.P.); (M.T.); (J.E.)
| | - Ivan Potočňák
- Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia; (M.G.); (I.P.); (M.T.); (J.E.)
| | - Monika Tvrdoňová
- Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia; (M.G.); (I.P.); (M.T.); (J.E.)
| | - Monika Majirská
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, Trieda SNP 1, 040 01 Košice, Slovakia; (M.M.); (M.B.-P.)
| | - Martina Bago-Pilátová
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, Trieda SNP 1, 040 01 Košice, Slovakia; (M.M.); (M.B.-P.)
| | - Slávka Bekešová
- Thermo Fisher Scientific, Mlynské Nivy 5, 821 09 Bratislava, Slovakia;
| | - Andrej Kováč
- Department of Pharmacology and Toxicology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (A.K.); (P.T.)
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 10 Bratislava, Slovakia;
| | - Peter Takáč
- Department of Pharmacology and Toxicology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; (A.K.); (P.T.)
| | - Krutika Khiratkar
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 10 Bratislava, Slovakia;
| | - Zuzana Kudličková
- Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia; (M.G.); (I.P.); (M.T.); (J.E.)
| | - Ján Elečko
- Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia; (M.G.); (I.P.); (M.T.); (J.E.)
| | - Mária Vilková
- Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia; (M.G.); (I.P.); (M.T.); (J.E.)
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16
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Hilmy KMH, Kishk FNM, Shahen EBA, Sobh EA, Hawata MA. New pyrrole derivatives as DNA gyrase and 14α-demethylase inhibitors: Design, synthesis, antimicrobial evaluation, and molecular docking. Drug Dev Res 2023; 84:1204-1230. [PMID: 37165799 DOI: 10.1002/ddr.22080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/01/2023] [Accepted: 03/12/2023] [Indexed: 05/12/2023]
Abstract
An efficient one-pot reaction utilizing readily available chemical reagents was used to prepare novel 2-amino-1,5-diaryl-1H-pyrrole-3-carbonitrile derivatives and the structures of these compounds were validated by spectroscopic data and elemental analyses. All the synthetic compounds were evaluated for their antimicrobial activities (MZI assay). The tested compounds proved high activities on Staphylococcus aureus (Gram-positive bacteria) and Candida albicans (Pathogenic fungi). However, they did not show any activity on Escherichia coli (Gram-negative bacteria). The most effective compounds in MZI assay 7c, 9a, 9b, 11a, and 11b were selected to determine their MIC on S. aureus and C. albicans. Furthermore, DNA gyrase and 14-α demethylase inhibitory assays were performed to study the inhibitory activities of 7c, 9a, 9b, 11a, and 11b. The results illustrated that compound 9b was the most DNA gyrase inhibitor (IC50 of 0.0236 ± 0.45 µM, which was 1.3- fold higher than gentamicin reference IC50 values of 0.0323 ± 0.81 µM). In addition, compound 9b demonstrated the highest 14-α demethylase inhibitory effect with IC50 of 0.0013 ± 0.02 µM, compared to ketoconazole (IC50 of 0.0008 ± 0.03 µM) and fluconazole (IC50 of 0.00073 ± 0.01 µM), as antifungal reference drugs. Lastly, docking studies were performed to rationalize the dual inhibitory activities of the highly active compounds on both DNA gyrase and 14-α demethylase enzymes.
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Affiliation(s)
- Khaled M H Hilmy
- Department of Chemistry, Faculty of Science, El-Menoufia University, Shebin El-Kom, Egypt
| | - Fawzya N M Kishk
- Department of Chemistry, Faculty of Science, El-Menoufia University, Shebin El-Kom, Egypt
| | - Esmat B A Shahen
- Depatment of Biochemistry, Faculty of Medicine, Al-Azhar University for Girls, Cairo, Egypt
| | - Eman A Sobh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Menoufia University, Menoufia, Shebin El-Kom, Egypt
| | - Mohamed A Hawata
- Department of Chemistry, Faculty of Science, El-Menoufia University, Shebin El-Kom, Egypt
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17
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Homölle S, Stangier M, Reyes E, Ackermann L. Bifurcated Rhodaelectro-catalyzed C-H Activation for the Synthesis of Pyrroles and Lactones. Precis Chem 2023; 1:382-387. [PMID: 37654809 PMCID: PMC10466456 DOI: 10.1021/prechem.3c00061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 09/02/2023]
Abstract
While electrocatalyzed alkyne annulations of arenes represent a powerful strategy for the assembly of heteroaromatic motives, electrochemical C(sp2)-H activations of alkenes remain scarce. Herein, a strategy for the rhodaelectro-catalyzed functionalization of enamides is presented for the efficient construction of pyrroles using electricity as a sustainable oxidant. Moreover, the tuning of the solvent system allowed a fascinating switch in chemoselectivity, which is not possible with traditionally used chemical oxidants, giving rise to lactone architectures. The rhoda-electrocatalysis features a broad scope as well as high regio- and chemoselectivities.
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Affiliation(s)
- Simon
L. Homölle
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Maximilian Stangier
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Efraim Reyes
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- University
of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Bizkaia, Spain
| | - Lutz Ackermann
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- DZHK
(German Centre for Cardiovascular Research), Potsdamer Straße 58, 10785 Berlin, Germany
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18
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Tzankova D, Kuteva H, Mateev E, Stefanova D, Dzhemadan A, Yordanov Y, Mateeva A, Tzankova V, Kondeva-Burdina M, Zlatkov A, Georgieva M. Synthesis, DFT Study, and In Vitro Evaluation of Antioxidant Properties and Cytotoxic and Cytoprotective Effects of New Hydrazones on SH-SY5Y Neuroblastoma Cell Lines. Pharmaceuticals (Basel) 2023; 16:1198. [PMID: 37765006 PMCID: PMC10537553 DOI: 10.3390/ph16091198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023] Open
Abstract
A series of ten new hydrazide-hydrazone derivatives bearing a pyrrole ring were synthesized and structurally elucidated through appropriate spectral characteristics. The target hydrazones were assessed for radical scavenging activity through 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) tests, with ethyl 5-(4-bromophenyl)-1-(2-(2-(4-hydroxy-3,5-dimethoxybenzylidene)hydrazine-yl)-2-oxoethyl)-2-methyl-1H-pyrrole-3-carboxylate (7d) and ethyl 5-(4-bromophenyl)-1-(3-(2-(4-hydroxy-3,5-dimethoxybenzylidene) hydra zine-yl)-3-oxopropyl)-2-methyl-1H-pyrrole-3-carboxylate (8d) highlighted as the best radical scavengers from the series. Additional density functional theory (DFT) studies have indicated that the best radical scavenging ligands in the newly synthesized molecules are stable, do not decompose into elements, are less polarizable, and with a hard nature. The energy of the highest occupied molecular orbital (HOMO) revealed that both compounds possess good electron donation capacities. Overall, 7d and 8d can readily scavenge free radicals in biological systems via the donation of hydrogen atoms and single electron transfer. The performed in vitro assessment of the compound's protective activity on the H2O2-induced oxidative stress model on human neuroblastoma cell line SH-SY5Y determined 7d as the most perspective representative with the lowest cellular toxicity and the highest protection.
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Affiliation(s)
- Diana Tzankova
- Department “Pharmaceutical Chemistry”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (D.T.); (E.M.); (A.M.); (A.Z.)
| | - Hristina Kuteva
- Laboratory “Drug metabolism and Drug Toxicity”, Department “Pharmacology, Pharmacotherapy and Toxicology”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (H.K.); (D.S.); (Y.Y.); (V.T.); (M.K.-B.)
| | - Emilio Mateev
- Department “Pharmaceutical Chemistry”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (D.T.); (E.M.); (A.M.); (A.Z.)
| | - Denitsa Stefanova
- Laboratory “Drug metabolism and Drug Toxicity”, Department “Pharmacology, Pharmacotherapy and Toxicology”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (H.K.); (D.S.); (Y.Y.); (V.T.); (M.K.-B.)
| | - Alime Dzhemadan
- Laboratory “Drug metabolism and Drug Toxicity”, Department “Pharmacology, Pharmacotherapy and Toxicology”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (H.K.); (D.S.); (Y.Y.); (V.T.); (M.K.-B.)
| | - Yordan Yordanov
- Laboratory “Drug metabolism and Drug Toxicity”, Department “Pharmacology, Pharmacotherapy and Toxicology”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (H.K.); (D.S.); (Y.Y.); (V.T.); (M.K.-B.)
| | - Alexandrina Mateeva
- Department “Pharmaceutical Chemistry”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (D.T.); (E.M.); (A.M.); (A.Z.)
| | - Virginia Tzankova
- Laboratory “Drug metabolism and Drug Toxicity”, Department “Pharmacology, Pharmacotherapy and Toxicology”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (H.K.); (D.S.); (Y.Y.); (V.T.); (M.K.-B.)
| | - Magdalena Kondeva-Burdina
- Laboratory “Drug metabolism and Drug Toxicity”, Department “Pharmacology, Pharmacotherapy and Toxicology”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (H.K.); (D.S.); (Y.Y.); (V.T.); (M.K.-B.)
| | - Alexander Zlatkov
- Department “Pharmaceutical Chemistry”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (D.T.); (E.M.); (A.M.); (A.Z.)
| | - Maya Georgieva
- Department “Pharmaceutical Chemistry”, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (D.T.); (E.M.); (A.M.); (A.Z.)
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Sample HC, Twamley B, Senge MO. Structure of ( R, R)-4-bromo-2-{4-[4-bromo-1-(4-toluene-sulfon-yl)-1 H-pyrrol-2-yl]-1,3-di-nitro-butan-2-yl}-1-(4-toluene-sulfon-yl)-1 H- pyrrole, another ostensible by-product in the synthesis of geminal-dimethyl hydro-dipyrrins. Acta Crystallogr E Crystallogr Commun 2023; 79:592-595. [PMID: 37601579 PMCID: PMC10439434 DOI: 10.1107/s2056989023004644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 05/25/2023] [Indexed: 08/22/2023]
Abstract
The crystal structure of (R,R)-4-bromo-2-{4-[4-bromo-1-(4-toluene-sulfon-yl)-1H-pyrrol-2-yl]-1,3-di-nitro-butan-2-yl}-1-(4-toluene-sulfon-yl)-1H-pyrrole (1, C26H24Br2N4O8S2) is presented. The title compound was isolated in suitable yield as a by-product in our synthesis of geminal-dimethyl hydro-dipyrrins. We observe an unforeseen enanti-omeric resolution both in the bulk sample and the crystal of 1, with distinct C-H⋯O (Cmeth-yl-H⋯Onitro, Csp 3-H⋯Osulfon-yl) inter-actions observed in the enanti-omers present, along with other inter-actions, namely C5-pyrrol-yl-H⋯Osulfon-yl, forming a polymer along the crystallographic c-axis direction. Whilst pyrrolic fragments are well documented in the literature, little data is found surrounding the 1,3-di-nitro-butane scaffold.
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Affiliation(s)
- Harry C. Sample
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse St., D02 R590, Dublin, Ireland
| | - Brendan Twamley
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Mathias O. Senge
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse St., D02 R590, Dublin, Ireland
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20
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Kim H, Gu L, Yeo H, Choi U, Lee CR, Yu H, Koo S. Rapid Assembly of Pyrrole-Ligated 1,3,4-Oxadiazoles and Excellent Antibacterial Activity of Iodophenol Substituents. Molecules 2023; 28:molecules28083638. [PMID: 37110872 PMCID: PMC10142073 DOI: 10.3390/molecules28083638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Pyrrole-ligated 1,3,4-oxadiazole is a very important pharmacophore which exhibits broad therapeutic effects such as anti-tuberculosis, anti-epileptic, anti-HIV, anti-cancer, anti-inflammatory, antioxidant, and antibacterial activities. A one-pot Maillard reaction between D-Ribose and an L-amino methyl ester in DMSO with oxalic acid at 2.5 atm and 80 °C expeditiously produced pyrrole-2-carbaldehyde platform chemicals in reasonable yields, which were utilized for the synthesis of pyrrole-ligated 1,3,4-oxadiazoles. Benzohydrazide reacted with the formyl group of the pyrrole platforms to provide the corresponding imine intermediates, which underwent I2-mediated oxidative cyclization to the pyrrole-ligated 1,3,4-oxadiazole skeleton. The structure and activity relationship (SAR) of the target compounds with varying alkyl or aryl substituents of the amino acids and electron-withdrawing or electron-donating substituents on the phenyl ring of benzohydrazide were evaluated for antibacterial activity against Escherichia coli, Staphylococcus aureus, and Acinetobacter baumannii as representative Gram(-) and Gram(+) bacteria. Branched alkyl groups from the amino acid showed better antibacterial activities. Absolutely superior activities were observed for 5f-1 with an iodophenol substituent against A. baumannii (MIC < 2 μg/mL), a bacterial pathogen that displays a high resistance to commonly used antibiotics.
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Affiliation(s)
- Hyein Kim
- Department of Chemistry, Myongji University, Myongji-Ro 116, Cheoin-Gu, Yongin 17058, Gyeonggi-Do, Republic of Korea
| | - Lina Gu
- Department of Chemistry, Myongji University, Myongji-Ro 116, Cheoin-Gu, Yongin 17058, Gyeonggi-Do, Republic of Korea
- School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Huisu Yeo
- Department of Chemistry, Myongji University, Myongji-Ro 116, Cheoin-Gu, Yongin 17058, Gyeonggi-Do, Republic of Korea
| | - Umji Choi
- Department of Biological Sciences and Bioinformatics, Myongji University, Myongji-Ro 116, Cheoin-Gu, Yongin 17058, Gyeonggi-Do, Republic of Korea
| | - Chang-Ro Lee
- Department of Biological Sciences and Bioinformatics, Myongji University, Myongji-Ro 116, Cheoin-Gu, Yongin 17058, Gyeonggi-Do, Republic of Korea
| | - Haiyang Yu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Sangho Koo
- Department of Chemistry, Myongji University, Myongji-Ro 116, Cheoin-Gu, Yongin 17058, Gyeonggi-Do, Republic of Korea
- School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
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21
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Dai S, Tao M, Zhong Y, Li Z, Liang J, Chen D, Liu K, Wei B, Situ B, Gao M, Tang BZ. In Situ Generation of Red-to-NIR Emissive Radical Cations in the Stomach for Gastrointestinal Imaging. Adv Mater 2023; 35:e2209940. [PMID: 36670538 DOI: 10.1002/adma.202209940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Red-to-near-infrared (NIR) fluorescent probes, with advantages such as high spatiotemporal resolution and in situ sensing abilities, are highly attractive for diagnosis of gastrointestinal diseases and targeted drug development. However, conventional red-to-NIR fluorophores with electron closed-shell structures require tedious synthetic procedures for preparation, and it is difficult to further decorate them with sensing groups. In this study, a series of easily prepared pyrroles with simple structures that can quickly be transformed into red-to-NIR emissive radical cations in acidic buffer solution and in vivo stomachs is developed. The in-situ-generated red-to-NIR emissive pyrrole radical cations in the stomach have excellent biocompatibility and stability and can be used not only for intravital gastrointestinal imaging with high spatiotemporal resolution, but also for dynamic monitoring of the gastric emptying process and assessment of anti-gastric-acid therapy. The acidity-induced generation of pyrrole radical cations is believed to provide a facile strategy for developing red-to-NIR fluorophores and studying gastrointestinal diseases.
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Affiliation(s)
- Shuhui Dai
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Maliang Tao
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yuan Zhong
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zixiong Li
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jianshu Liang
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Dongcheng Chen
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Kai Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, 530200, China
| | - Binbin Wei
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Bo Situ
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Meng Gao
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, Guangdong, 518172, China
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22
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Pinčeková L, Jančiová E, Berkeš D, Gyepes R, Kolarovič A, Caletková O. Total Synthesis of Hemerocallisamine I Paved by Gram-Scale Synthesis of (2 S,4 S)-4-Hydroxyglutamic Acid Lactone. Molecules 2023; 28:molecules28052177. [PMID: 36903423 PMCID: PMC10037412 DOI: 10.3390/molecules28052177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 02/24/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Total synthesis of the 2-formylpyrrole alkaloid hemerocallisamine I is presented, both in racemic and enantiopure form. Our synthetic strategy involves (2S,4S)-4-hydroxyglutamic acid lactone as the key intermediate. Starting from an achiral substrate, the target stereogenic centers were introduced by means of crystallization-induced diastereomer transformation (CIDT) in a highly stereoselective fashion. A Maillard-type condensation was crucial to constructing the desired pyrrolic scaffold.
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Affiliation(s)
- Lucia Pinčeková
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Eva Jančiová
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Dušan Berkeš
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Róbert Gyepes
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Andrej Kolarovič
- Department of Chemistry, Faculty of Education, Trnava University, Priemyselná 4, 918 43 Trnava, Slovakia
| | - Oľga Caletková
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
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23
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Lu Z, Liu H, Lv X, Lv W, Liu Y, Zhu K. Molecular Hinges by Fusion of Pyrrole and Dithiin: Synthesis, Structure, Redox Chemistry and Host-guest Complexation of Dipyrrolo-1,4-dithiins. Chemistry 2023; 29:e202300101. [PMID: 36811250 DOI: 10.1002/chem.202300101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 02/23/2023]
Abstract
A series of novel hinge-like molecules, namely dipyrrolo-1,4-dithiins (PDs), were prepared and fully characterized by NMR, UV/vis, cyclic voltammogram, ESR, and single crystal X-ray diffraction (SCXRD) analysis. The lateral fusion of pyrroles with 1,4-dithiins has led to not only retained key features of a dithiin, but also enhanced redox-activity with increased susceptibility to radical cations via redox or chemical oxidation. Stabilization of their radicals are observed for the N,N-tert-butyl or N,N-triphenylmethyl PD as evidenced by ESR measurements. DFT calculations and SCXRD analysis revealed PD s are extremely flexible with adaptive molecular geometries that can be mechanically regulated via crystal packing or host-guest complexation. The excellent donor nature of PD s renders inclusion complexes with the cyclophane bluebox (cyclobis(paraquat-p-phenylene)), featuring association constants up to 104 M-1. Additionally, a planarized transition intermediate associated with inversion dynamics of a PD has been preserved in the pseudorotaxane structure with assistances of π···π and S···π interactions. The hinged structure, excellent redox-activity, and adaptive nature of PDs could further enable accesses to exotic redox switchable host-guest chemistry and functional materials.
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Affiliation(s)
- Zonghuan Lu
- Sun Yat-Sen University, School of Chemistry, CHINA
| | - Hongyi Liu
- Sun Yat-Sen University, School of Chemistry, CHINA
| | - Xinyuan Lv
- Sun Yat-Sen University, School of Chemistry, CHINA
| | - Wanqian Lv
- Sun Yat-Sen University, School of Chemistry, CHINA
| | - Yandie Liu
- Sun Yat-Sen University, School of Chemistry, CHINA
| | - Kelong Zhu
- Sun Yat-Sen University, School of Chemistry, 135 Xingang Road West, 510275, Guangzhou, CHINA
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24
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Zhang A, Lu Z, Yu H, Zhang Y, Qin X, Ji X, He S, Zong Y, Zhong Y, Li L. Effects of Hevea brasiliensis Intercropping on the Volatiles of Pandanus amaryllifolius Leaves. Foods 2023; 12. [PMID: 36832964 DOI: 10.3390/foods12040888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/02/2023] [Accepted: 02/10/2023] [Indexed: 02/22/2023] Open
Abstract
Pandanus amaryllifolius Roxb. is a special tropical spice crop resource with broad development prospects. It is widely cultivated under a Hevea brasiliensis (Willd. ex A. Juss.) Muell. Arg. canopy to improve the comprehensive benefits to Hevea brasiliensis plantations in Hainan Provence, China. However, the effects of intercropping with Hevea brasiliensis on the component number and relative contents of volatile substances in different categories in the Pandanus amaryllifolius leaves are still unknown. Therefore, a Hevea brasiliensis and Pandanus amaryllifolius intercropping experiment was set up to clarify the differences between several cultivated patterns on volatile substances in the Pandanus amaryllifolius leaves, and the key regulatory factors of volatile substances. The results showed that the soil pH was significantly decreased, while soil bulk density, alkali-hydrolyzable nitrogen and available phosphorus contents were significantly increased under the intercropping pattern. The component numbers of esters in volatile substances were increased by 6.20%, while the component numbers of ketones were decreased by 4.26% under the intercropping pattern. Compared with the Pandanus amaryllifolius monoculture, the relative contents of pyrroles, esters and furanones were significantly increased by 8.83%, 2.30% and 8.27%, respectively, while the relative contents of ketones, furans and hydrocarbons were decreased by 1.01%, 10.55% and 9.16% under the intercropping pattern, respectively. The relative contents of pyrroles, esters, furanones, ketones, furans and hydrocarbons were associated with changes in soil pH, soil available phosphorus content and air temperature. The results indicated that the reduction in soil pH and enhancement in soil-available phosphorus may be the main reasons for promoting the relative content of pyrroles and reducing the relative content of hydrocarbons under an intercropping pattern. Overall, Hevea brasiliensis intercropping with Pandanus amaryllifolius could not only improve soil properties, but also significantly increase the relative contents of the main volatile substances in Pandanus amaryllifolius leaves, which could provide a theoretical basis for the application and promotion of high-quality production patterns of Pandanus amaryllifolius.
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25
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Xie W, Wiriyarattanakul S, Rungrotmongkol T, Shi L, Wiriyarattanakul A, Maitarad P. Rational Design of a Low-Data Regime of Pyrrole Antioxidants for Radical Scavenging Activities Using Quantum Chemical Descriptors and QSAR with the GA-MLR and ANN Concepts. Molecules 2023; 28:molecules28041596. [PMID: 36838583 PMCID: PMC9959680 DOI: 10.3390/molecules28041596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/11/2023] Open
Abstract
A series of pyrrole derivatives and their antioxidant scavenging activities toward the superoxide anion (O2•-), hydroxyl radical (•OH), and 1,1-diphenyl-2-picryl-hydrazyl (DPPH•) served as the training data sets of a quantitative structure-activity relationship (QSAR) study. The steric and electronic descriptors obtained from quantum chemical calculations were related to the three O2•-, •OH, and DPPH• scavenging activities using the genetic algorithm combined with multiple linear regression (GA-MLR) and artificial neural networks (ANNs). The GA-MLR models resulted in good statistical values; the coefficient of determination (R2) of the training set was greater than 0.8, and the root mean square error (RMSE) of the test set was in the range of 0.3 to 0.6. The main molecular descriptors that play an important role in the three types of antioxidant activities are the bond length, HOMO energy, polarizability, and AlogP. In the QSAR-ANN models, a good R2 value above 0.9 was obtained, and the RMSE of the test set falls in a similar range to that of the GA-MLR models. Therefore, both the QSAR GA-MLR and QSAR-ANN models were used to predict the newly designed pyrrole derivatives, which were developed based on their starting reagents in the synthetic process.
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Affiliation(s)
- Wanting Xie
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Sopon Wiriyarattanakul
- Program in Computer Science, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit 53000, Thailand
| | - Thanyada Rungrotmongkol
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Chulalongkorn University, Bangkok 10330, Thailand
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
| | - Liyi Shi
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
- Emerging Industries Institute, Shanghai University, Jiaxing 314006, China
| | - Amphawan Wiriyarattanakul
- Program in Chemistry, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit 53000, Thailand
- Correspondence: (A.W.); (P.M.)
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
- Correspondence: (A.W.); (P.M.)
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Mo F, Spano CE, Ardesi Y, Ruo Roch M, Piccinini G, Graziano M. Design of Pyrrole-Based Gate-Controlled Molecular Junctions Optimized for Single-Molecule Aflatoxin B1 Detection. Sensors (Basel) 2023; 23:s23031687. [PMID: 36772727 PMCID: PMC9919708 DOI: 10.3390/s23031687] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 05/27/2023]
Abstract
Food contamination by aflatoxins is an urgent global issue due to its high level of toxicity and the difficulties in limiting the diffusion. Unfortunately, current detection techniques, which mainly use biosensing, prevent the pervasive monitoring of aflatoxins throughout the agri-food chain. In this work, we investigate, through ab initio atomistic calculations, a pyrrole-based Molecular Field Effect Transistor (MolFET) as a single-molecule sensor for the amperometric detection of aflatoxins. In particular, we theoretically explain the gate-tuned current modulation from a chemical-physical perspective, and we support our insights through simulations. In addition, this work demonstrates that, for the case under consideration, the use of a suitable gate voltage permits a considerable enhancement in the sensor performance. The gating effect raises the current modulation due to aflatoxin from 100% to more than 103÷104%. In particular, the current is diminished by two orders of magnitude from the μA range to the nA range due to the presence of aflatoxin B1. Our work motivates future research efforts in miniaturized FET electrical detection for future pervasive electrical measurement of aflatoxins.
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Affiliation(s)
- Fabrizio Mo
- Department of Electronics and Telecommunication, Politecnico di Torino, 10129 Torino, Italy
| | - Chiara Elfi Spano
- Department of Electronics and Telecommunication, Politecnico di Torino, 10129 Torino, Italy
| | - Yuri Ardesi
- Department of Electronics and Telecommunication, Politecnico di Torino, 10129 Torino, Italy
| | - Massimo Ruo Roch
- Department of Electronics and Telecommunication, Politecnico di Torino, 10129 Torino, Italy
| | - Gianluca Piccinini
- Department of Electronics and Telecommunication, Politecnico di Torino, 10129 Torino, Italy
| | - Mariagrazia Graziano
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
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Al-Wahaibi LH, Mohammed AF, Abdelrahman MH, Trembleau L, Youssif BGM. Design, Synthesis, and Antiproliferative Activity of New 5-Chloro-indole-2-carboxylate and Pyrrolo[3,4-b]indol-3-one Derivatives as Potent Inhibitors of EGFR(T790M)/BRAF(V600E) Pathways. Molecules 2023; 28. [PMID: 36770936 DOI: 10.3390/molecules28031269] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Mutant EGFR/BRAF pathways are thought to be crucial targets for the development of anticancer drugs since they are over-activated in several malignancies. We present here the development of a novel series of 5-chloro-indole-2-carboxylate 3a-e, 4a-c and pyrrolo[3,4-b]indol-3-ones 5a-c derivatives as potent inhibitors of mutant EGFR/BRAF pathways with antiproliferative activity. The cell viability assay results of 3a-e, 4a-c, and 5a-c revealed that none of the compounds tested were cytotoxic, and that the majority of those tested at 50 µM had cell viability levels greater than 87%. Compounds 3a-e, 4a-c, and 5a-c had significant antiproliferative activity with GI50 values ranging from 29 nM to 78 nM, with 3a-e outperforming 4a-c and 5a-c in their inhibitory actions against the tested cancer cell lines. Compounds 3a-e were tested for EGFR inhibition, with IC50 values ranging from 68 nM to 89 nM. The most potent derivative was found to be the m-piperidinyl derivative 3e (R = m-piperidin-1-yl), with an IC50 value of 68 nM, which was 1.2-fold more potent than erlotinib (IC50 = 80 nM). Interestingly, all the tested compounds 3a-e had higher anti-BRAFV600E activity than the reference erlotinib but were less potent than vemurafenib, with compound 3e having the most potent activity. Moreover, compounds 3b and 3e showed an 8-fold selectivity index toward EGFRT790M protein over wild-type. Additionally, molecular docking of 3a and 3b against BRAFV600E and EGFRT790M enzymes revealed high binding affinity and active site interactions compared to the co-crystalized ligands. The pharmacokinetics properties (ADME) of 3a-e revealed safety and good pharmacokinetic profile.
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Li Z, Hu K, Li Z, Li C, Deng Y. Poly pyrrole-Stabilized Polypeptide for Eco-Friendly Supercapacitors. Int J Mol Sci 2023; 24:ijms24032497. [PMID: 36768819 PMCID: PMC9916972 DOI: 10.3390/ijms24032497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/31/2023] Open
Abstract
As an energy storage technology, supercapacitors (SCs) have become an important part of many electronic systems because of their high-power density, long cycle life, and maintenance-free characteristics. However, the widespread development and use of electronics, including SCs, have led to the generation of a large amount of e-waste. In addition, achieving compatibility between stability and biodegradability has been a prominent challenge for implantable electronics. Therefore, environmentally friendly SCs based on polypyrrole (PPy)-stabilized polypeptide (FF) are demonstrated in this study. The fully degradable SC has a layer-by-layer structure, including polylactic acid/chitosan (PLA-C) support layers, current collectors (Mg), FF/PPy composite layers, and a polyvinyl alcohol/phosphate buffer solution (PVA/PBS) hydrogel. It has the advantages of being light, thin, flexible, and biocompatible. After 5000 cycles in air, the capacitance retention remains at up to 94.7%. The device could stably operate for 7 days in a liquid environment and completely degrade in vitro within 90 days without any adverse effect on the environment. This work has important implications for eco-friendly electronics and will have a significant impact on the implantable biomedical electronics.
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Affiliation(s)
- Zhe Li
- School of Medical Technology, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China
- Correspondence: (Z.L.); (Y.D.)
| | - Kuan Hu
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Zhou Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Cong Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Yulin Deng
- School of Life, Beijing Institute of Technology, Beijing 100081, China
- Correspondence: (Z.L.); (Y.D.)
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Patil SM, Asgaonkar KD, Magdum P, Chinde V, Edake A, Naik A. Development of 7H-pyrrolo[2,3-d]pyrimidin-4-amine Derivatives Using QSARINS Tool as BTK Inhibitors for the Treatment of Rheumatoid Arthritis. Antiinflamm Antiallergy Agents Med Chem 2023; 22:236-249. [PMID: 38018179 DOI: 10.2174/0118715230272263231103094710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/28/2023] [Accepted: 09/08/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by inflammation of the joints, leading to pain, swelling, and joint deformity. Effective management of RA involves the use of disease-modifying drugs that can slow down disease progression and alleviate symptoms. Among the potential targets for RA treatment is Bruton's tyrosine kinase (BTK), which plays a crucial role in B-cell signalling and contributes to the pathogenesis of RA. AIMS QSARINS (QSAR-INSUBRIA) is software used for the development and validation of Quantitative Structure-Activity Relationship (QSAR) analysis. In the present work, this software was explored for pharmacophore optimization of the pyrrolo-pyrimidine nucleus for anti-rheumatoid activity. METHODS A series of pyrrolo-pyrimidine derivatives were used to build the QSAR models. These models were generated to identify structural features that correlate significantly with the activity. We followed the assessment of statistical parameters to ensure thorough validation of all the QSAR models. The QSAR models demonstrating better statistical performance were selected, and descriptors of these models were analysed. RESULTS The results showed that the QSAR models were highly statistically robust and exhibited a strong external predictive ability. Their structural features were also deduced. CONCLUSION This QSAR study provided crucial information about the specific molecular features that can be used for the optimization of the pharmacophores. This research provides valuable insights into the structural features essential for BTK inhibition and paves the way for the design and development of novel anti-rheumatic agents targeting BTK in RA.
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He J, Luo L, Xu S, Yang F, Zhu W. Pyrrole-based EGFR inhibitors for the treatment of NCSLC: Binding modes and SARs investigations. Chem Biol Drug Des 2023; 101:195-217. [PMID: 36394145 DOI: 10.1111/cbdd.14169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 10/25/2022] [Accepted: 10/29/2022] [Indexed: 11/19/2022]
Abstract
The treatment of advanced non-small cell lung cancer (NSCLC) has made substantial progress due to the rapid development of small molecule targeted therapy, with dramatically prolonged survival. As an effective drug for the treatment of NSCLC, epidermal growth factor receptor (EGFR) inhibitors are currently experiencing issues like severe adverse events and drug resistance. It is urgent to develop novel types of EGFR inhibitors to overcome the abovementioned limitations. Pyrrole always works well as a probe for the creation of novel medication candidates for hard-to-treat conditions like lung cancer. Although the design, synthesis, and biological assays of pyrrole derivatives have been reported, their inhibitory actions against the receptor tyrosine kinase (RTK) EGFR have not been in-depthly studied. This review highlights the small molecule EGFR inhibitors containing pyrrole heterocyclic pharmacophores in recent years, and the research on their mechanism, biological activity, and structure-activity relationship (SAR).
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Affiliation(s)
- Jie He
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, China
| | - Leixuan Luo
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, China
| | - Shidi Xu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, China
| | - Feiyi Yang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, China
| | - Wufu Zhu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, China
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Kondeva-Burdina M, Mateev E, Angelov B, Tzankova V, Georgieva M. In Silico Evaluation and In Vitro Determination of Neuroprotective and MAO-B Inhibitory Effects of Pyrrole-Based Hydrazones: A Therapeutic Approach to Parkinson's Disease. Molecules 2022; 27. [PMID: 36500572 DOI: 10.3390/molecules27238485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/19/2022] [Accepted: 11/29/2022] [Indexed: 12/07/2022]
Abstract
Parkinson's disease is a huge burden in modern medicinal practice. A serious drawback of current antiparkinsonian therapy is its symptomatic nature. This directed our investigations in the search for new more potent derivatives, affecting not only the loss of dopaminergic neurons but also the oxidative damage of neuronal cells. Thus in vitro neurotoxicity and neuroprotective analysis on a group of N-pyrrolyl hydrazide-hydrazones were performed. The neurotoxicity of the target derivatives was determined on a subcellular level in isolated rat synaptosomes, mitochondria and microsomes determining their effect on cellular vitality, GSH depletion and MDA production. The neuroprotective effects of the evaluated hydrazones were measured in three models of induced oxidative stress: 6-OHDA, t-BuOOH and Fe2+/AA-induced lipid peroxidation. Molecular docking simulations along with in vitro evaluation of MAO-B inhibitory potential of the target molecules were also performed. The results identified the ethyl 5-(4-bromophenyl)-1-(3-hydrazinyl-3-oxopropyl)-2-methyl-1H-pyrrole-3-carboxylate (12) as the most promising compound with the lowest neurotoxicity and highest neuroprotection on all evaluated parameters and inhibiting the hMAOB enzyme by 50%, comparable with the activity of the reference, Selegiline. The compatibility of the in silico and in vitro evaluations is a good prerequisite for these methods to be applied in future assessment of pyrrole-based compounds as anti-Parkinson agents.
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Ali S, Cai R, Feng H, Xie J, Zhang Y, Wang H. Identification of antibacterial metabolites produced by a marine bacterium Halobacillus marinus HMALI004. J Appl Microbiol 2022; 133:3030-3040. [PMID: 35929370 DOI: 10.1111/jam.15764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/29/2022]
Abstract
AIMS This study examined and characterized the extract for metabolites of Halobacillus marinus HMALI004 to understand their antibacterial activities against opportunistic marine pathogens, i.e., Vibrio parahaemolyticus and Vibrio cholerae. METHODS AND RESULTS The bacterial strain HMALI004 was characterized as Halobacillus marinus, and an antibacterial spectral test revealed its inhibition against two opportunistic marine pathogens (V. parahaemolyticus and V. cholera). Fermentation broth of strain HMALI004 was subjected to column chromatography and high-performance liquid chromatography (HPLC) to separate antibacterial substances. Two compounds were successfully isolated and identified as 1H-pyrrole-2-carboxylic acid and 4-chloro-1H-pyrrole-2-carboxylic acid by mass spectrometry (MS) and nuclear magnetic resonance (NMR). The minimal inhibition concentration (MIC) values of 1H-pyrrole-2-carboxylic acid and 4-chloro-1H-pyrrole-2-carboxylic acid for V. parahaemolyticus were 25 μg/mL, while their MIC values for V. cholerae were 50 and 100 μg/mL, respectively. The reactive oxygen species (ROS) production of two pathogen strains treated with 1H-pyrrole-2-carboxylic acid and 4-chloro-1H-pyrrole-2-carboxylic acid were detected to investigate the antimicrobial mechanism. The results suggested that 4-chloro-1H-pyrrole-2-carboxylic acid exerted enhanced ROS production in V. parahaemolyticus, whereas 1H-pyrrole-2-carboxylic acid had a weaker effect. Both compounds caused a significant rise in ROS production in V. cholerae, causing severe damage to the cell wall and cytoplasm, leading to cell death. CONCLUSIONS The bacterium H. marinus HMALI004 was isolated from a shrimp pond and was found to produce antimicrobial compounds which could inhibit the growth of opportunistic marine pathogens V. parahaemolyticus and V. cholerae by increasing ROS. SIGNIFICANCE AND IMPACT OF THE STUDY Successfully isolated antibacterial-producing strain, H. marinus HMALI004, and its antimicrobial compounds could be used as biological control agents for marine pathogens.
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Affiliation(s)
- Sardar Ali
- Biology Department and Institute of Marine Sciences, College of Science, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - Runlin Cai
- Biology Department and Institute of Marine Sciences, College of Science, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - Hao Feng
- Biology Department and Institute of Marine Sciences, College of Science, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - Jianmin Xie
- Biology Department and Institute of Marine Sciences, College of Science, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - Yueling Zhang
- Biology Department and Institute of Marine Sciences, College of Science, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
| | - Hui Wang
- Biology Department and Institute of Marine Sciences, College of Science, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
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Chu J, Li G, Wang Y, Zhang X, Yang Z, Han Y, Cai T, Song Z. Benzoquinone- Pyrrole Polymers as Cost-Effective Cathodes toward Practical Organic Batteries. ACS Appl Mater Interfaces 2022; 14:25566-25575. [PMID: 35611969 DOI: 10.1021/acsami.2c05703] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Organic cathode materials (OCMs) for rechargeable Li and Na batteries show great advantages in resource sustainability and huge potential in electrochemical performance but suffer from dissolution problems and costly synthesis. Herein, for the first time, we investigated the copolymer of benzoquinone (BQ) and pyrrole (Py), namely, poly(benzoquinone-pyrrole) (PBQPy), as an OCM for Li batteries. The low-cost raw materials and solvent-free synthesis provide PBQPy much brighter prospects in large-scale production compared to other carbonyl-based polymer cathode materials. Nevertheless, PBQPy showed one of the best electrochemical performances among all OCMs, including excellent energy density (2.32 V × 255 mAh g-1 = 592 Wh kg-1), rate capability (79%@2000 mA g-1), and cycling stability (81%@1000th cycle). By introducing poly(benzoquinone-methyl pyrrole) for comparison, as well as employing density functional theory calculations and various characterizations for in-depth understanding, the synthesis mechanism, polymer structure, electrochemical behavior, and redox mechanism were clearly clarified. It is believed that this work will encourage more efforts to develop cost-effective OCMs toward practical organic batteries.
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Affiliation(s)
- Jun Chu
- Hubei Key Lab of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Gaofeng Li
- Hubei Key Lab of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yanxia Wang
- Hubei Key Lab of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xi Zhang
- Hubei Key Lab of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Zihao Yang
- Hubei Key Lab of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yan Han
- Hubei Key Lab of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Taotao Cai
- Hubei Key Lab of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Zhiping Song
- Hubei Key Lab of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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Liu X, Song R, Wei R. Rapid Determination of Vitamin D 3 in Aquatic Products by Poly pyrrole-Coated Magnetic Nanoparticles Extraction Coupled with High-Performance Liquid Chromatography Detection. Nanomaterials (Basel) 2022; 12:1226. [PMID: 35407344 DOI: 10.3390/nano12071226] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 03/30/2022] [Accepted: 04/02/2022] [Indexed: 02/04/2023]
Abstract
A method using polypyrrole-coated Fe3O4 (Fe3O4@PPy composites) based extraction coupled with high performance liquid chromatography was developed for adsorption and detection of trace vitamin D3 (VD3) in aquatic products. The fabricated Fe3O4@PPy composites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and thermogravimetric analysis. Fe3O4@PPy composites showed efficient adsorption of VD3 at pH 9.0 and 25 °C with a dose of 25 mg per 10 mL of sample solution and an adsorption time of 11 min. Methanol was selected as the desorption solvent to recover VD3 from Fe3O4@PPy composites after 3 min of static treatment. Fe3O4@PPy composites can be used for VD3 adsorption at least two times. The developed method showed a good linearity for VD3 determination in the range of 0.1-10 μg/mL with a correlation coefficient of 0.9989. The limits of detection and quantification were 10 ng/mL and 33 ng/mL, respectively. The recovery of VD3 in a spiking test was 97.72% with a relative standard deviation value of 1.78%. The content of VD3 in nine aquatic products was determined with this method. Our results show that Fe3O4@PPy composites provide a convenient method for the adsorption and determination of VD3 from the complex matrix of aquatic products.
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Mathias F, Kabri Y, Brun D, Primas N, Di Giorgio C, Vanelle P. Synthesis and Anti- Trypanosoma cruzi Biological Evaluation of Novel 2-Nitro pyrrole Derivatives. Molecules 2022; 27:molecules27072163. [PMID: 35408570 PMCID: PMC9000427 DOI: 10.3390/molecules27072163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/17/2022] [Accepted: 03/25/2022] [Indexed: 01/25/2023]
Abstract
Human American trypanosomiasis, called Chagas disease, caused by T. cruzi protozoan infection, represents a major public health problem, with about 7000 annual deaths in Latin America. As part of the search for new and safe anti-Trypanosoma cruzi derivatives involving nitroheterocycles, we report herein the synthesis of ten 1-substituted 2-nitropyrrole compounds and their biological evaluation. After an optimization phase, a convergent synthesis methodology was used to obtain these new final compounds in two steps from the 2-nitropyrrole starting product. All the designed derivatives follow Lipinski’s rule of five. The cytotoxicity evaluation on CHO cells showed no significant cytotoxicity, except for compound 3 (CC50 = 24.3 µM). Compound 18 appeared to show activity against T. cruzi intracellular amastigotes form (EC50 = 3.6 ± 1.8 µM) and good selectivity over the vero host cells. Unfortunately, this compound 18 showed an insufficient maximum effect compared to the reference drug (nifurtimox). Whether longer duration treatments may eliminate all parasites remains to be explored.
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Affiliation(s)
- Fanny Mathias
- Equipe Pharmaco-Chimie Radicalaire, CNRS, ICR UMR 7273, Faculté de Pharmacie, Aix Marseille University, 27 Boulevard Jean Moulin, CS30064, CEDEX 05, 13385 Marseille, France; (F.M.); (Y.K.); (D.B.); (N.P.)
- Assistance Publique-Hôpitaux de Marseille (APHM), Pharmacie Usage Intérieur, Hôpital Nord, Chemin-des-Bourrely, 13015 Marseille, France
| | - Youssef Kabri
- Equipe Pharmaco-Chimie Radicalaire, CNRS, ICR UMR 7273, Faculté de Pharmacie, Aix Marseille University, 27 Boulevard Jean Moulin, CS30064, CEDEX 05, 13385 Marseille, France; (F.M.); (Y.K.); (D.B.); (N.P.)
| | - Damien Brun
- Equipe Pharmaco-Chimie Radicalaire, CNRS, ICR UMR 7273, Faculté de Pharmacie, Aix Marseille University, 27 Boulevard Jean Moulin, CS30064, CEDEX 05, 13385 Marseille, France; (F.M.); (Y.K.); (D.B.); (N.P.)
| | - Nicolas Primas
- Equipe Pharmaco-Chimie Radicalaire, CNRS, ICR UMR 7273, Faculté de Pharmacie, Aix Marseille University, 27 Boulevard Jean Moulin, CS30064, CEDEX 05, 13385 Marseille, France; (F.M.); (Y.K.); (D.B.); (N.P.)
- Assistance Publique-Hôpitaux de Marseille (APHM), Service Central de la Qualité et de l’Information Pharmaceutiques (SCQIP), Hôpital de la Conception, 147, Boulevard Baille, 13005 Marseille, France
| | - Carole Di Giorgio
- Laboratoire de Mutagénèse Environnementale, CNRS, IRD, Aix Marseille University, IMBE UMR 7263, Avignon University, 13385 Marseille, France;
| | - Patrice Vanelle
- Equipe Pharmaco-Chimie Radicalaire, CNRS, ICR UMR 7273, Faculté de Pharmacie, Aix Marseille University, 27 Boulevard Jean Moulin, CS30064, CEDEX 05, 13385 Marseille, France; (F.M.); (Y.K.); (D.B.); (N.P.)
- Assistance Publique-Hôpitaux de Marseille (APHM), Service Central de la Qualité et de l’Information Pharmaceutiques (SCQIP), Hôpital de la Conception, 147, Boulevard Baille, 13005 Marseille, France
- Correspondence: ; Tel.: +33-4-9183-5580
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Awasthi BP, Lee H, Jeong BS. Synthesis of Pyridoxine-Derived Dimethylpyridinols Fused with Aminooxazole, Aminoimidazole, and Amino pyrrole. Molecules 2022; 27:molecules27072075. [PMID: 35408475 PMCID: PMC9000659 DOI: 10.3390/molecules27072075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022]
Abstract
Described in this paper are studies on the preparation of three classes of dimethylpyridinols derived from pyridoxine fused with aminooxazole, aminoimidazole, and aminopyrrole. The key feature of this synthetic strategy is the manipulation of hydroxymethyl moiety of C(5)-position of the pyridoxine starting material along with the installation of an amino group at C(6)-position. Efficient and practical synthesis for the oxazole- and imidazole-fused targets was accomplished, while the instability of the pyrrole-fused one was observed.
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Affiliation(s)
| | - Hyunji Lee
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Korea;
- Department of Chemistry and Howard Hughes Medical Institute, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA
- Correspondence: (H.L.); (B.-S.J.)
| | - Byeong-Seon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Korea;
- Correspondence: (H.L.); (B.-S.J.)
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Tan KJ, Morikawa S, Phillips KR, Ozbek N, Hatton TA. Redox-Active Magnetic Composites for Anionic Contaminant Removal from Water. ACS Appl Mater Interfaces 2022; 14:8974-8983. [PMID: 35144378 DOI: 10.1021/acsami.1c21466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Global water security is jeopardized by the presence of anthropogenic contaminants, which can persist resiliently in the environment and adversely affect human health. Surface adsorption of polluting species is an effective technique for water purification. In this work, redox-active magnetic compounds were designed for the targeted removal of inorganic and organic anions in water via polymeric redox-active vinylferrocene (VFc) and pyrrole (Py) moieties. An Fe3O4@SiO2@PPy@P(VFc-co-HEMA) composite was prepared in a four-step process, with the outermost layer possessing heightened hydrophilicity as a result of the optimized incorporation of 2-hydroxyethylmethacrylate (HEMA) monomers into the backbone of the ferrocene macromolecule. The synthesized materials are able to separate carcinogenic hexavalent chromium oxyanions and other charged micropollutants, and exhibit a 2-fold or greater enhancement in adsorption uptake once the redox-active ferrocene groups are oxidized to ferrocenium cations, with capacities of 23, 49, 66, and 95 mg/g VFc for maleic acid, 2-(6-methoxy-2-naphthyl)propionic acid (Naproxen), (2,4-dichlorophenoxy)acetic acid (2,4-D), and (2-dodecylbenzene)sulfonic acid (DBS), respectively, and a > 99% extractability of chromium in the 1 ppm range. The application of redox-active components to a magnetic particulate scaffold improves maneuverability and phase contact, giving rise to new potential aqueous separation process frameworks for water or product purification.
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Affiliation(s)
- Kai-Jher Tan
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Satoshi Morikawa
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Katherine R Phillips
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Nil Ozbek
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - T Alan Hatton
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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Uematsu K, Hayasaka C, Takase K, Noguchi K, Nakano K. Transformation of Thia[7]helicene to Aza[7]helicenes and [7]Helicene-like Compounds via Aromatic Metamorphosis. Molecules 2022; 27:molecules27030606. [PMID: 35163875 PMCID: PMC8839769 DOI: 10.3390/molecules27030606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 11/27/2022] Open
Abstract
[n]Helicenes with helically twisted structures have attracted increasing interest owing to their unique properties. Therefore, it has been an important issue to develop facile synthetic methodologies which allow access to a variety of [n]helicenes. Here we report the synthesis of [7]helicenes and [7]helicene-like compounds from the thia[7]helicene as a common starting material. Desulfurative dilithiation of the thia[7]helicene and the subsequent reaction with silicon and phosphorus electrophiles afforded the silole- and phosphole-fused [7]helicene-like compounds, respectively. The cyclopentadiene-fused [7]helicene-like compound and the pyrrole-fused aza[7]helicenes were also successfully synthesized via twofold SNAr reactions of the thia[7]helicene S,S-dioxide with the carbon and nitrogen nucleophiles, respectively. The thia[7]helicene S,S-dioxide showed a slightly red-shifted absorption spectrum than the parent thia[7]helicene, which was well demonstrated by the theoretical calculations. The substituents on the silicon atom of silole-fused [7]helicene-like compounds have little impact on the longest absorption maximum. Such little effect of the substituents on absorption properties was also observed for cyclopentadiene-fused [7]helicene-like compounds and aza[7]helicenes and was well demonstrated by the theoretical calculations. The thia[7]helicene S,S-dioxide and the silole-fused [7]helicene-like compound exhibited bright blue emission, and the cyclopentadiene-fused [7]helicene-like compound and the aza[7]helicenes showed strong violet emission. Each single enantiomer of the aza[7]helicenes showed circularly-polarized luminescence with the dissymmetry factors of 4.2~4.4 × 10−3.
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Affiliation(s)
- Keisuke Uematsu
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei 184-8588, Japan; (K.U.); (C.H.); (K.T.)
| | - Chikara Hayasaka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei 184-8588, Japan; (K.U.); (C.H.); (K.T.)
| | - Ko Takase
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei 184-8588, Japan; (K.U.); (C.H.); (K.T.)
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei 184-8588, Japan;
| | - Koji Nakano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei 184-8588, Japan; (K.U.); (C.H.); (K.T.)
- Correspondence: ; Tel.: +81-42-388-7162
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Köhler L, Patzschke M, Schmidt M, Stumpf T, März J. How 5 f Electron Polarisability Drives Covalency and Selectivity in Actinide N-Donor Complexes. Chemistry 2021; 27:18058-18065. [PMID: 34747538 PMCID: PMC9299701 DOI: 10.1002/chem.202102849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 01/12/2023]
Abstract
We report a series of isostructural tetravalent actinide (Th, U−Pu) complexes with the N‐donor ligand N,N’‐ethylene‐bis((pyrrole‐2‐yl)methanimine) (H2L, H2pyren). Structural data from SC‐XRD analysis reveal [An(pyren)2] complexes with different An−Nimine versus An−Npyrrolide bond lengths. Quantum chemical calculations elucidated the bonding situation, including differences in the covalent character of the coordinative bonds. A comparison to the intensely studied analogous N,N′‐ethylene‐bis(salicylideneimine) (H2salen)‐based complexes [An(salen)2] displays, on average, almost equal electron sharing of pyren or salen with the AnIV, pointing to a potential ligand‐cage‐driven complex stabilisation. This is shown in the fixed ligand arrangement of pyren and salen in the respective AnIV complexes. The overall bond strength of the pure N‐donor ligand pyren to AnIV (An=Th, U, Np, Pu) is slightly weaker than to salen, with the exception of the PaIV complex, which exhibits extraordinarily high electron sharing of pyren with PaIV. Such an altered ligand preference within the early AnIV series points to a specificity of the 5f1 configuration, which can be explained by polarisation effects of the 5 f electrons, allowing the strongest f electron backbonding from PaIV (5f1) to the N donors of pyren.
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Affiliation(s)
- Luisa Köhler
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Michael Patzschke
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Moritz Schmidt
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Thorsten Stumpf
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Juliane März
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Bautzner Landstraße 400, 01328, Dresden, Germany
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Semenya D, Touitou M, Ribeiro CM, Pavan FR, Pisano L, Singh V, Chibale K, Bano G, Toscani A, Manetti F, Gianibbi B, Castagnolo D. Structural Rigidification of N-Aryl- pyrroles into Indoles Active against Intracellular and Drug-Resistant Mycobacteria. ACS Med Chem Lett 2021; 13:63-69. [PMID: 35059125 PMCID: PMC8762742 DOI: 10.1021/acsmedchemlett.1c00431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 12/01/2021] [Indexed: 01/16/2023] Open
Abstract
A series of indolyl-3-methyleneamines incorporating lipophilic side chains were designed through a structural rigidification approach and synthesized for investigation as new chemical entities against Mycobacterium tuberculosis (Mtb). The screening led to the identification of a 6-chloroindole analogue 7j bearing an N-octyl chain and a cycloheptyl moiety, which displayed potent in vitro activity against laboratory and clinical Mtb strains, including a pre-extensively drug-resistant (pre-XDR) isolate. 7j also demonstrated a marked ability to restrict the intracellular growth of Mtb in murine macrophages. Further assays geared toward mechanism of action elucidation have thus far ruled out the involvement of various known promiscuous targets, thereby suggesting that the new indole 7j may inhibit Mtb via a unique mechanism.
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Affiliation(s)
- Dorothy Semenya
- School
of Cancer and Pharmaceutical Sciences, King’s
College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Meir Touitou
- School
of Cancer and Pharmaceutical Sciences, King’s
College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Camila Maringolo Ribeiro
- Tuberculosis
Research Laboratory, School of Pharmaceutical Sciences, Sao Paulo State University (UNESP), Rodovia Araraquara-Jau, km1, 14800-903 Araraquara, Brazil
| | - Fernando Rogerio Pavan
- Tuberculosis
Research Laboratory, School of Pharmaceutical Sciences, Sao Paulo State University (UNESP), Rodovia Araraquara-Jau, km1, 14800-903 Araraquara, Brazil
| | - Luca Pisano
- School
of Cancer and Pharmaceutical Sciences, King’s
College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Vinayak Singh
- Drug
Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa,South
African Medical Research Council Drug Discovery and Development Research
Unit, Department of Chemistry and Institute of Infectious Disease
and Molecular Medicine, University of Cape
Town, Rondebosch 7701, South Africa
| | - Kelly Chibale
- Drug
Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa,South
African Medical Research Council Drug Discovery and Development Research
Unit, Department of Chemistry and Institute of Infectious Disease
and Molecular Medicine, University of Cape
Town, Rondebosch 7701, South Africa
| | - Georg Bano
- School
of Cancer and Pharmaceutical Sciences, King’s
College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Anita Toscani
- School
of Cancer and Pharmaceutical Sciences, King’s
College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Fabrizio Manetti
- Dipartimento
di Biotecnologie, Chimica e Farmacia, Università
di Siena, via Aldo Moro
2, I-53100 Siena, Italy
| | - Beatrice Gianibbi
- Dipartimento
di Biotecnologie, Chimica e Farmacia, Università
di Siena, via Aldo Moro
2, I-53100 Siena, Italy
| | - Daniele Castagnolo
- School
of Cancer and Pharmaceutical Sciences, King’s
College London, 150 Stamford Street, London SE1 9NH, United Kingdom,
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Olivier WJ, Smith JA, Bissember AC. Synthesis of Pyrrolidine- and γ-Lactam-Containing Natural Products and Related Compounds from Pyrrole Scaffolds. CHEM REC 2021; 22:e202100277. [PMID: 34862727 DOI: 10.1002/tcr.202100277] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/18/2021] [Indexed: 11/11/2022]
Abstract
Polycyclic alkaloid natural products featuring pyrrolidine and pyrrolidinone motifs remain enduring targets of total synthesis endeavors. Pyrrole and its derivatives have been exploited to access many such frameworks, including alkaloids belonging to the Aspidosperma, Stemona, and batzelladine families. In this article, a selection of exemplars that highlight the utility of pyrrole-based approaches to facilitate total syntheses of pyrrolidine- and pyrrolidinone-containing alkaloids and related molecules are showcased.
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Affiliation(s)
- Wesley J Olivier
- School of Natural Sciences-Chemistry, University of Tasmania Hobart, Tasmania, Australia
| | - Jason A Smith
- School of Natural Sciences-Chemistry, University of Tasmania Hobart, Tasmania, Australia
| | - Alex C Bissember
- School of Natural Sciences-Chemistry, University of Tasmania Hobart, Tasmania, Australia
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Baidya M, Maiti D, Roy L, De Sarkar S. Trifluoroethanol as a Unique Additive for the Chemoselective Electrooxidation of Enamines to Access Unsymmetrically Substituted NH- Pyrroles. Angew Chem Int Ed Engl 2021; 61:e202111679. [PMID: 34851544 DOI: 10.1002/anie.202111679] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 11/15/2021] [Indexed: 01/31/2023]
Abstract
An electrochemical method for the synthesis of unsymmetrically substituted NH-pyrroles is described. The synthetic strategy comprises a challenging heterocoupling between two structurally diverse enamines via sequential chemoselective oxidation, addition, and cyclization processes. A series of aryl- and alkyl-substituted enamines were effectively cross-coupled from an equimolar mixture to synthesize various unsymmetrical pyrrole derivatives up to 84 % yield. The desired cross-coupling was achieved by tuning the oxidation potential of the enamines by utilizing a "magic effect" of the additive trifluoroethanol (TFE). Additionally, extensive computational studies reveal the unique role of TFE in promoting the heterocoupling process by regulating the activation energies of the reaction steps through H-bonding and C-H⋅⋅⋅π interactions. Importantly, the developed electrochemical protocol was found to be equally efficient for the homocoupling of enamines to form symmetric pyrroles up to 92 % yield.
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Affiliation(s)
- Mrinmay Baidya
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Debabrata Maiti
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Lisa Roy
- Institute of Chemical Technology Mumbai, IOC Odisha Campus Bhubaneswar, IIT Kharagpur Extension Centre, Bhubaneswar, 751013, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
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Stasiuk R, Matlakowska R. Postdiagenetic Bacterial Transformation of Nickel and Vanadyl Sedimentary Porphyrins of Organic-Rich Shale Rock (Fore-Sudetic Monocline, Poland). Front Microbiol 2021; 12:772007. [PMID: 34917054 PMCID: PMC8669743 DOI: 10.3389/fmicb.2021.772007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/01/2021] [Indexed: 11/29/2022] Open
Abstract
Nickel and vanadyl porphyrins belong to the so-called fossil geo- or sedimentary porphyrins. They occur in different types of organic matter-rich sediments but mostly occur in crude oils and their source rocks, oil shales, coals, and oil sands. In this study, we aimed to understand the process of bacterial transformation of geoporphyrins occurring in the subsurface shale rock (Fore-Sudetic Monocline, SW Poland). We studied these transformations in rock samples directly obtained from the field; in rock samples treated with bacterial strain isolated from shale rock (strain LM27) in the laboratory; and using synthetic nickel and vanadyl porphyrins treated with LM27. Our results demonstrate the following: (i) cleavage and/or degradation of aliphatic and aromatic substituents of porphyrins; (ii) degradation of porphyrin (tetrapyrrole) ring; (iii) formation of organic compounds containing 1, 2, or 3 pyrrole rings; (iv) formation of nickel- or vanadium-containing organic compounds; and (v) mobilization of nickel and vanadium. Our results also showed that the described bacterial processes change the composition and content of geoporphyrins, composition of extractable organic matter, as well as nickel and vanadium content in shale rock.
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Affiliation(s)
| | - Renata Matlakowska
- Department of Geomicrobiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
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44
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Galiński B, Luboch E, Chojnacki J, Wagner-Wysiecka E. Novel Diazocrowns with Pyrrole Residue as Lead(II)Colorimetric Probes. Materials (Basel) 2021; 14:ma14237239. [PMID: 34885394 PMCID: PMC8658487 DOI: 10.3390/ma14237239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 11/22/2022]
Abstract
Novel 18- and 23-membered diazomacrocycles were obtained with satisfactory yields by diazocoupling of aromatic diamines with pyrrole in reactions carried under high dilution conditions. X-ray structure of macrocycle bearing five carbon atoms linkage was determined and described. Compounds were characterized as chromogenic heavy metal ions receptors. Selective color and spectral response for lead(II) was found in acetonitrile and its mixture with water. Complexation properties of newly obtained macrocycles with a hydrocarbon chain were compared with the properties of their oligoether analogs. The influence of the introduction of hydrocarbon residue as a part of macrocycle on the lead(II) binding was discussed. Selective and sensitive colorimetric probe for lead(II) in aqueous acetonitrile with detection limit 56.1 μg/L was proposed.
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Affiliation(s)
- Błażej Galiński
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland; (B.G.); (E.L.)
| | - Elżbieta Luboch
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland; (B.G.); (E.L.)
| | - Jarosław Chojnacki
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland;
| | - Ewa Wagner-Wysiecka
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland; (B.G.); (E.L.)
- Correspondence:
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Osorio-Londoño DM, Godínez-Fernández JR, Acosta-García MC, Morales-Corona J, Olayo-González R, Morales-Guadarrama A. Pyrrole Plasma Polymer-Coated Electrospun Scaffolds for Neural Tissue Engineering. Polymers (Basel) 2021; 13:3876. [PMID: 34833176 DOI: 10.3390/polym13223876] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 01/17/2023] Open
Abstract
Promising strategies for neural tissue engineering are based on the use of three-dimensional substrates for cell anchorage and tissue development. In this work, fibrillar scaffolds composed of electrospun randomly- and aligned-oriented fibers coated with plasma synthesized pyrrole polymer, doped and undoped with iodine, were fabricated and characterized. Infrared spectroscopy, thermogravimetric analysis, and X-ray diffraction analysis revealed the functional groups and molecular integration of each scaffold, as well as the effect of plasma polymer synthesis on crystallinity. Scanning microscopy imaging demonstrated the porous fibrillar micrometric structure of the scaffolds, which afforded adhesion, infiltration, and survival for the neural cells. Orientation analysis of electron microscope images confirmed the elongation of neurite-like cell structures elicited by undoped plasma pyrrole polymer-coated aligned scaffolds, without any biochemical stimuli. The MTT colorimetric assay validated the biocompatibility of the fabricated composite materials, and further evidenced plasma pyrrole polymer-coated aligned scaffolds as permissive substrates for the support of neural cells. These results suggest plasma synthesized pyrrole polymer-coated aligned scaffolds are promising materials for tissue engineering applications.
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Olivier WJ, Lucas NT, Bissember AC, Smith JA. Revised Structures of Dehydrostenines A and B: Total Syntheses of (±)-Dehydrostenine A and Structure Assigned to Dehydrostenine B. Chemistry 2021; 27:15382-15386. [PMID: 34426989 DOI: 10.1002/chem.202102651] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Indexed: 01/12/2023]
Abstract
The first total syntheses of the Stemona alkaloid dehydrostenine A and the structure assigned to dehydrostenine B have been completed from a simple pyrrole substrate in 10 and 11 steps, respectively. Two independent Brønsted-acid-mediated intramolecular Michael additions were exploited to construct the tetracyclic dehydrostenine core. As a result of synthetic studies and associated analysis of the relevant literature, revisions of the structures originally assigned to dehydrostenines A and B are proposed.
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Affiliation(s)
- Wesley J Olivier
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania, Australia
| | - Nigel T Lucas
- Department of Chemistry, University of Otago, Dunedin, Otago, New Zealand
| | - Alex C Bissember
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania, Australia
| | - Jason A Smith
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania, Australia
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Liu Y, Luo P, Fu Y, Hao T, Liu X, Ding Q, Peng Y. Recent advances in the tandem annulation of 1,3-enynes to functionalized pyridine and pyrrole derivatives. Beilstein J Org Chem 2021; 17:2462-2476. [PMID: 34630726 PMCID: PMC8474070 DOI: 10.3762/bjoc.17.163] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/11/2021] [Indexed: 12/11/2022] Open
Abstract
Great progress has been made in the tandem annulation of enynes in the past few years. This review only presents the corresponding reactions of 1,3-enyne structural motifs to provide the functionalized pyridine and pyrrole derivatives. The functionalization reactions cover iodination, bromination, trifluoromethylation, azidation, carbonylation, arylation, alkylation, selenylation, sulfenylation, amidation, esterification, and hydroxylation. We also briefly introduce the applications of the products and the reaction mechanisms for the synthesis of corresponding N-heterocycles.
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Affiliation(s)
- Yi Liu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Puying Luo
- Department of Gynaecology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, 92 Aiguo Road, Nanchang, Jiangxi, 330006, China
| | - Yang Fu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Tianxin Hao
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Xuan Liu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Qiuping Ding
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Yiyuan Peng
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
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48
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Seitz C, Eisenreich W, Huber C. The Abiotic Formation of Pyrrole under Volcanic, Hydrothermal Conditions-An Initial Step towards Life's First Breath? Life (Basel) 2021; 11:980. [PMID: 34575129 DOI: 10.3390/life11090980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 11/21/2022] Open
Abstract
Porphyrins, corrins, and tetrapyrroles constitute macrocycles in essential biomolecules such as heme, chlorophyll, cobalamin, and cofactor F430. The chemical synthesis as well as the enzymatic synthesis of these macrocycles starts from pyrrole derivatives. We here show that pyrrole and dimethyl pyrrole can be formed under the simulated volcanic, hydrothermal conditions of Early Earth, starting from acetylene, propyne, and ammonium salts in the presence of NiS or CoS as catalysts.
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Bianco MDCAD, Marinho DILF, Hoelz LVB, Bastos MM, Boechat N. Pyrroles as Privileged Scaffolds in the Search for New Potential HIV Inhibitors. Pharmaceuticals (Basel) 2021; 14:893. [PMID: 34577593 DOI: 10.3390/ph14090893] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 02/04/2023] Open
Abstract
Acquired immunodeficiency syndrome (AIDS) is caused by human immunodeficiency virus (HIV) and remains a global health problem four decades after the report of its first case. Despite success in viral load suppression and the increase in patient survival due to combined antiretroviral therapy (cART), the development of new drugs has become imperative due to strains that have become resistant to antiretrovirals. In this context, there has been a continuous search for new anti-HIV agents based on several chemical scaffolds, including nitrogenated heterocyclic pyrrole rings, which have been included in several compounds with antiretroviral activity. Thus, this review aims to describe pyrrole-based compounds with anti-HIV activity as a new potential treatment against AIDS, covering the period between 2015 and 2020. Our research allowed us to conclude that pyrrole derivatives are still worth exploring, as they may provide highly active compounds targeting different steps of the HIV-1 replication cycle and act with an innovative mechanism.
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50
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Horsten T, Dehaen W. 4,5,6,7-Tetrahydroindol-4-Ones as a Valuable Starting Point for the Synthesis of Polyheterocyclic Structures. Molecules 2021; 26:4596. [PMID: 34361747 PMCID: PMC8348459 DOI: 10.3390/molecules26154596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 11/17/2022] Open
Abstract
This review focuses on the synthesis of polyheterocyclic structures with a variety of medicinal and optoelectronic applications, starting from readily available 4,5,6,7-tetrahydroindol-4-one analogs. First, routes toward the 4,5,6,7-tetrahydroindol-4-one starting materials are summarized, followed by synthetic pathways towards polyheterocyclic structures which are categorized based on the size and attachment point of the newly formed (hetero)cyclic ring.
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Affiliation(s)
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium;
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