1
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Sa Y, Ding S, Zhang Y, Wang W, Wilson G, Ma F, Zhang W, Ma X. Integrating untargeted and targeted LC-MS-based metabolomics to identify the serum metabolite biomarkers for tuberculosis. Biomed Chromatogr 2024; 38:e5998. [PMID: 39193838 DOI: 10.1002/bmc.5998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 08/13/2024] [Accepted: 08/16/2024] [Indexed: 08/29/2024]
Abstract
Given the limitations of untargeted metabolomics in precise metabolite quantification, our current research employed a novel approach by integrating untargeted and targeted metabolomics utilizing ultra-high-performance liquid chromatography quadrupole time-of-flight tandem mass spectrometry (UHPLC-QTOF-MS/MS) to analyze the metabolic profile and potential biomarkers for tuberculosis (TB). A cohort of 36 TB patients and 36 healthy controls (HC) was enlisted to obtain serum samples. Multivariate pattern recognition and univariate statistical analysis were employed to screen and elucidate the differential metabolites, whereas dot plots and receiver operating characteristic (ROC) curves were established for the identification of potential biomarkers of TB. The results indicated a distinct differentiation between the two groups, identifying 99 metabolites associated with five primary metabolic pathways in relation to TB. Of these, 19 metabolites exhibited high levels of sensitivity and specificity, as evidenced by the area under curve values approaching 1. Following targeted quantitative analysis, three potential metabolites, namely, L-asparagine, L-glutamic acid, and arachidonic acid, were demonstrated excellent discriminatory ability as evidenced by the results of the ROC curve, dot plots, and random forest model. Particularly noteworthy was the enhanced diagnostic efficacy of the combination of these three metabolites compared to singular biomarkers, suggesting their potential utility as serum biomarkers for TB diagnosis.
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Affiliation(s)
- Yuping Sa
- School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China
| | - Shuqin Ding
- School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China
| | - Yue Zhang
- School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China
| | - Weibiao Wang
- School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China
| | - Gidion Wilson
- School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China
| | - Feng Ma
- School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China
| | - Weiman Zhang
- School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China
| | - Xueqin Ma
- School of Pharmacy, Ningxia Medical University, 1160 Shenli Street, Yinchuan, 750004, China
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2
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Kerti L, Frecer V. Design of inhibitors of SARS-CoV-2 papain-like protease deriving from GRL0617: Structure-activity relationships. Bioorg Med Chem 2024; 113:117909. [PMID: 39288705 DOI: 10.1016/j.bmc.2024.117909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 09/02/2024] [Accepted: 09/06/2024] [Indexed: 09/19/2024]
Abstract
The unique and complex structure of papain-like protease (PLpro) of the SARS-CoV-2 virus represents a difficult challenge for antiviral development, yet it offers a compelling validated target for effective therapy of COVID-19. The surge in scientific interest in inhibiting this cysteine protease emerged after its demonstrated connection to the cytokine storm in patients with COVID-19 disease. Furthermore, the development of new inhibitors against PLpro may also be beneficial for the treatment of respiratory infections caused by emerging coronavirus variants of concern. This review article provides a comprehensive overview of PLpro inhibitors, focusing on the structural framework of the known inhibitor GRL0617 and its analogs. We categorize PLpro inhibitors on the basis of their structures and binding site: Glu167 containing site, BL2 groove, Val70Ub site, and Cys111 containing catalytic site. We summarize and evaluate the majority of GRL0617-like inhibitors synthesized so far, highlighting their published biochemical parameters, which reflect their efficacy. Published research has shown that strategic modifications to GRL0617, such as decorating the naphthalene ring, extending the aromatic amino group or the orthomethyl group, can substantially decrease the IC50 from micromolar up to nanomolar concentration range. Some advantageous modifications significantly enhance inhibitory activity, paving the way for the development of new potent compounds. Our review places special emphasis on structures that involve direct modifications to the GRL0617 scaffold, including piperidine carboxamides and modified benzylmethylnaphthylethanamines (Jun9 scaffold). All these compounds are believed to inhibit the proteolytic, deubiquitination, and deISGylation activity of PLpro, biochemical processes linked to the severe progression of COVID-19. Finally, we summarize the development efforts for SARS-CoV-2 PLpro inhibitors, in detailed structure-activity relationships diagrams. This aims to inform and inspire future research in the search for potent antiviral agents against PLpro of current and emerging coronavirus threats.
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Affiliation(s)
- Lukas Kerti
- Department of Physical Chemistry of Drugs, Faculty of Pharmacy, Comenius University Bratislava, SK-83232 Bratislava, Slovakia
| | - Vladimir Frecer
- Department of Physical Chemistry of Drugs, Faculty of Pharmacy, Comenius University Bratislava, SK-83232 Bratislava, Slovakia.
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3
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Devnath HS, Biswas P, Oisay DS, Medha MM, Islam MN, Biswas B, Hossain A, Hasan MN, Ahmed KS, Hossain H, Sadhu SK. Bioactive phytocompounds profiling and the evaluation of analgesic, anti-inflammatory, and antihyperglycemic potential of Argyreia capitiformis (Poir.) Ooststr.: A combined in vitro, in vivo, and computational investigations. JOURNAL OF ETHNOPHARMACOLOGY 2024; 337:118949. [PMID: 39419301 DOI: 10.1016/j.jep.2024.118949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 10/04/2024] [Accepted: 10/14/2024] [Indexed: 10/19/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Argyreia capitiformis (Poir.) Ooststr. (Convolvulaceae) is traditionally used by the Chakma community in the hilly region of Bangladesh to treat minor disorders such as pain. AIM OF THE STUDY This study intended to determine the secondary metabolites to identify bioactive compounds and evaluate antioxidant potential, in vitro anti-inflammatory and in vivo analgesic, anti-inflammatory, and antihyperglycemic activities of A. capitiformis along with in silico investigations. MATERIALS AND METHODS Chemical profiling was carried out using HPLC and GC-MS analysis. The analgesic effect was measured employing tail immersion and acetic acid-induced writhing methods. Following protein denaturation and formalin-induced paw edema, anti-inflammatory activity was studied. The antihyperglycemic potential was assessed using an oral glucose tolerance test (OGTT), while further mechanistic investigation was conducted using an alpha-glucosidase enzyme inhibitory assay. Simulations and molecular docking analyses were performed to ascertain the stability and binding affinities of the drug-protein complex. RESULTS A. capitiformis ethanolic extract confirmed the presence of phenolics, alkaloids, flavonoids, terpenoids, tannins, gums, steroids, and reducing sugars. HPLC analysis revealed the presence of eight polyphenolic compounds, the most abundant of which was myricetin (64.10 ± 0.14 mg per 100 g dry extract). Moreover, the GC-MS analysis revealed twenty-four molecules, the most important of which was 2,4-bis (dimethylbenzyl)-6-t-butylphenol (9.19%). The concentrations of total flavonoids, total terpenoids, total phenolics, and total tannins were ascertained to be 142.48 mg QE/g, 173.1 mg UAE/g, 19.35 mg GAE/g, and 13.05 mg GAE/g, respectively. Furthermore, the plant extract had a total antioxidant capacity of 388 mg AAE/g. In the writhing assay, the plant extract suppressed writhing by 59.73% and 76.99% at the doses of 250 and 500 mg/kg, respectively, compared to the standard diclofenac Na 87.17%, and in the tail immersion assay, the plant extract displayed a maximum average reaction time of 1.94 and 2.40 s at the doses of 250 and 500 mg/kg, respectively as compared to the control tramadol 2.84 s at 60 min. In an in vitro anti-inflammatory assay, the plant extract possessed an IC50 of 95.51 μg/ml while diclofenac Na (standard drug) was found to be 69.50 μg/ml. Afterward, in vivo anti-inflammatory activity was observed in mice over a period, particularly after 3 h, the plant extract exerted maximum percent inflammation inhibitions of 36.36% and 45.45% at the doses of 250 and 500 mg/kg, respectively whereas ibuprofen the standard drug (100 mg/kg) exhibited 61.82%. The plant extract demonstrated antihyperglycemic activity, lowering blood sugar levels to 5.7 and 4.62 mM at doses of 250 and 500 mg/kg, respectively, as opposed to 8.58 mM in the control group. Meanwhile, the standard drug glibenclamide (5 mg/kg) dropped blood glucose levels to 2.38 mM in 60 min after glucose administration. Molecular docking (MD) and molecular dynamics simulation (MDS) studies support the stability of the protein complex responsible for exerting pharmacological activities. CONCLUSION A. capitiformis extract exhibited strong medicinal values supporting its traditional uses.
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Affiliation(s)
| | - Partha Biswas
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
| | | | | | - Md Naharul Islam
- Pharmacy Discipline, Khulna University, Khulna, 9208, Bangladesh.
| | - Biswajit Biswas
- Department of Pharmacy, Jashore University of Science & Technology, Jashore, 7408, Bangladesh.
| | - Arafat Hossain
- Biochemistry and Molecular Biology Department, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalgonj, 8100, Bangladesh.
| | - Md Nazmul Hasan
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
| | - Khondoker Shahin Ahmed
- Chemical Research Division, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka 1205, Bangladesh.
| | - Hemayet Hossain
- Chemical Research Division, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka 1205, Bangladesh.
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Hekal MH, Abdalha AA, Farag H, Ali AT. Synthesis, DFT Calculations, and Biological Studies of New 2-Cyano-3-(Naphthalene-1-yl) Acryloyl Amide Analogues as Anticancer Agents. Chem Biodivers 2024; 21:e202401023. [PMID: 39015085 DOI: 10.1002/cbdv.202401023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/18/2024]
Abstract
A set of novel naphthalene derivatives was synthesized via investment of the electrophilic reaction center of the easily obtainable starting substance, 2-cyano-3-(naphthalen-1-yl)acryloyl chloride (1), with various nitrogen nucleophiles and assessed as potential antitumor agents. The chemical structures of these derivatives were completely specified using several spectral and elemental analyses. The antiproliferative efficacy of the discovered compounds against the human cancer cell lines HepG2 and MCF-7 was investigated. Compounds 12b and 9 have more potent anticancer activity versus MCF-7 breast cancer. DFT calculations for the synthesized compounds were studied to determine molecular geometry, frontier orbital analysis, and molecular electrostatic potential. Compound 2 has the lowest energy gap, the highest softness, and the lowest hardness molecule. Also, the electrophilicity values of the studied molecules provide evidence for their biological effectiveness, as compound 9 had significant antiproliferative activity and a high value of electrophilicity (ω) (0.190 eV).
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Affiliation(s)
- Mohamed H Hekal
- Chemistry Department, Faculty of Science, Ain Shams University, 11566, Cairo, Egypt
| | - Abdelaal A Abdalha
- Chemistry Department, Faculty of Science, Ain Shams University, 11566, Cairo, Egypt
| | - Hanaa Farag
- Pesticide Chemistry Department, Chemical Industries Research Institute, National Research Centre, 12622, Cairo, Egypt
| | - Amira T Ali
- Chemistry Department, Faculty of Science, Ain Shams University, 11566, Cairo, Egypt
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5
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Maji S, Rawal P, Ghosh A, Pidiyar K, Al-Thabaiti SA, Gupta P, Maiti D. Metal-free Borylation of α-Naphthamides and Phenylacetic Acid Drug. JACS AU 2024; 4:3679-3689. [PMID: 39328765 PMCID: PMC11423307 DOI: 10.1021/jacsau.4c00660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/13/2024] [Accepted: 08/14/2024] [Indexed: 09/28/2024]
Abstract
Site-selective C-H borylation is an important strategy for constructing molecular diversity in arenes and heteroarenes. Although transition-metal-catalyzed borylation is well explored, developing metal-free strategies remains scarce. Herein, we developed a straightforward approach for BBr3-mediated selective C-H borylation of naphthamide and phenyl acetamide derivatives under metal-free conditions. This methodology appears to be economical and cost-effective. Successful borylation of drug molecules such as ibuprofen and indoprofen demonstrates the versatility and utility of this metal-free borylation. An exclusive monoselectivity was observed without a trace of diboration. Despite the possibility of forming a 5-membered boronated intermediate at the ortho-position, the selectively 6-membered intermediate paved the way for the formation of the peri-product, which was further supported by detailed computational investigation.
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Affiliation(s)
- Suman Maji
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Parveen Rawal
- Computational Catalysis Center, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Animesh Ghosh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Karishma Pidiyar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Shaeel A Al-Thabaiti
- Department of Chemistry, Faculty of Science, King Abdulaziz University institution, P.O. Box : 80203, Jeddah, 21589, Saudi Arabia
| | - Puneet Gupta
- Computational Catalysis Center, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
- Department of Chemistry, Faculty of ScienceCenter for Sustainable Energy, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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6
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Hekal HA, Salem MM, El Salam HAA. Inhibition of DRP-1 mitochondrial mitophagy and fission by novel α-aminophosphonates bearing pyridine: synthesis, biological evaluations, and computer-aided design. BMC Chem 2024; 18:174. [PMID: 39294735 PMCID: PMC11409709 DOI: 10.1186/s13065-024-01268-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 08/14/2024] [Indexed: 09/21/2024] Open
Abstract
Heterocyclic compounds play a crucial role in the drug discovery process and development due to their significant presence and importance. Here, we report a comprehensive analysis of α-aminophosphonates containing pyridine (3a-g), prepared according to a clear-cut, uncomplicated procedure. The phosphonates are thoroughly characterized using various methods, such as elemental analysis, mass spectrometry, proton and carbon NMR, and FT-IR. The molecular docking interactions between the phosphonate and DRP-1 target protein observed that compound 3d had the top-ranked binding energy towards DRP-1 with a value equal to - 9.54 kcal/mol and this theoretically proves its inhibitory efficacy against DRP-1 arbitrated mitochondrial fission. Besides, the anticancer characteristics of compound 3d showed the best IC50 against HepG-2, MCF-7, and Caco-2 which confirmed our results towards suppressing DRP-1 protein (in-silico), and it elucidated no cytotoxic effects against human normal cell line (WI-38). Further, its pharmacokinetics were observed theoretically using ADMET. Moreover,compound 3d investigated the most potent antimicrobial ability against two pathological fungal strains, A. flavus and C. albicans, and four bacterial strains, E. coli, B. subtillis, S. aureus, and P. aregeunosa. Additionally, compound 3d clarified a powerful antioxidant scavenging activity against DPPH and ABTS free radicals (in-vitro). Furthermore, Density functional theory (DFT) was used to study the molecular structures of the synthesized compounds 3a-g, utilizing 6-311++G(d,p) as the basis set and to learn more about the molecules' reactive sites, the energies of the molecular electrostatic potential (MEP), the lowest unoccupied molecular orbital (LUMO), and the highest occupied molecular orbital (HOMO) were observed. Theoretically, FT-IR and Nuclear magnetic resonance (NMR) measurements are calculated for every compound under investigation to show how theory and experiment relate. It was found that there was an excellent agreement between the theoretical and experimental data. Conclusively, all novel synthesized phosphonates could be used as pharmaceutical agents against pathogenic microbial strains and as anticancer candidates by inhibiting DRP-1-mediated mitochondrial mitophagy.
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Affiliation(s)
- Hend A Hekal
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Maha M Salem
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
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7
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Doraghi F, Taherkhani AM, Hosseinifar T, Rashidi Ranjbar P, Larijani B, Mahdavi M. Transition metal-catalyzed transformations of 2-formylarylboronic acids. Org Biomol Chem 2024; 22:6905-6921. [PMID: 39140460 DOI: 10.1039/d4ob01024h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
2-Formylarylboronic acids are easily available precursors in organic chemistry. Different types of transition metal catalysts, such as Pd(0), Pd(II), Rh(I), Ir(I), Ni(II), Cu(I), Cu(II), and Co(II), can efficiently catalyze coupling reactions of 2-formylarylboronic acids with other organic reactants. In this review, we describe the synthesis of a diverse range of carbocyclic and heterocyclic compounds, as well as acyclic compounds, via transition metal-catalyzed reactions of 2-formylarylboronic acids over the past two decades.
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Affiliation(s)
- Fatemeh Doraghi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Amir Mohammad Taherkhani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Tolou Hosseinifar
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | | | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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8
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Lei S, Bu S, Yao M, Wang SR. Divergent Aromatization of α-Halobenzyl γ-Butenolides Initiated by Selective Enol Protonation to Benzo[ c]fluorenones and Naphthalenes. J Org Chem 2024; 89:11067-11071. [PMID: 39041582 DOI: 10.1021/acs.joc.4c01181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
An unprecedented divergent aromatization reaction of α-halobenzyl γ-butenolides has been described for the selective and concise synthesis of highly substituted benzo and higher π-extended fluorenones, and 1,3-disubstituted naphthalenes depending on the migration ability of the quaternary α-substituent. This aromatization switch from Ag+-mediated planarization to ylidenebutenolides likely originates from selective protonation on the enolic double bond rather than the benzyl halides by TfOH.
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9
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Su W, Zhu J, Chen Y, Zhang X, Qiu W, Yang K, Yu P, Song Q. Copper-catalysed asymmetric hydroboration of alkenes with 1,2-benzazaborines to access chiral naphthalene isosteres. Nat Chem 2024; 16:1312-1319. [PMID: 38589627 DOI: 10.1038/s41557-024-01505-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 03/08/2024] [Indexed: 04/10/2024]
Abstract
Bioisosteric replacement has emerged as a clear strategy for drug-structure optimization. Naphthalene is the core element of many chiral pharmaceuticals and drug candidates. However, as a promising isostere of naphthalene, the chiral version of 1,2-benzazaborine has rarely been explored due to the lack of efficient synthetic methods. Here we describe a copper-catalysed enantioselective hydroboration of alkenes with 1,2-benzazaborines. The method provides a general platform for the atom-economic and efficient construction of diverse chiral 1,2-benzazaborine compounds (more than 60 examples) that bear a 2-carbon-stereogenic centre or allene skeleton in high yields and excellent enantioselectivities. Three 1,2-benzazaborine analogues of bioactive chiral naphthalene-containing molecules have been prepared, and a series of transformations around chiral 1,2-benzazaborines have also been developed. Notably, the hydroboration process of this study reveals that the identity of 1,2-benzazaborine plays an essential role in the rate-determining step and catalyst resting state.
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Affiliation(s)
- Wanlan Su
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Jide Zhu
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Yu Chen
- Department of Chemistry and Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Xu Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Weihua Qiu
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China
| | - Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China.
| | - Peiyuan Yu
- Department of Chemistry and Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China.
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, China.
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10
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Zosim TP, Kadikova RN, Novikov RA, Korlyukov AA, Mozgovoj OS, Ramazanov IR. The TaCl 5-Mediated Reaction of Dimethyl 2-Phenylcyclopropane-1,1-dicarboxylate with Aromatic Aldehydes as a Route to Substituted Tetrahydronaphthalenes. Molecules 2024; 29:2715. [PMID: 38930781 PMCID: PMC11205635 DOI: 10.3390/molecules29122715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 05/31/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
It is found that the reaction of dimethyl 2-phenylcyclopropane-1,1-dicarboxylate with 2 equivalents each of aromatic aldehydes and TaCl5 in 1,2-dichloroethane at 23 °C for 24 h after hydrolysis gives substituted 4-phenyl-3,4-dihydronaphtalene-2,2(1H)-dicarboxylates in good yield. This represents a new type of reactions between 2-arylcyclopropane-1,1-dicarboxylates and aromatic aldehydes, yielding chlorinated tetrahydronaphthalenes with a cis arrangement of the aryl and chlorine substituents in the cyclohexene moiety. A plausible reaction mechanism is proposed.
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Affiliation(s)
- Tat’yana P. Zosim
- Institute of Petrochemistry and Catalysis of Russian Academy of Sciences, Prospekt Oktyabrya 141, 450075 Ufa, Russia; (T.P.Z.); (O.S.M.)
| | - Rita N. Kadikova
- Institute of Petrochemistry and Catalysis of Russian Academy of Sciences, Prospekt Oktyabrya 141, 450075 Ufa, Russia; (T.P.Z.); (O.S.M.)
| | - Roman A. Novikov
- N.D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences, Leninsky prospect 47, 119991 Moscow, Russia;
| | - Alexander A. Korlyukov
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St., 28 bld. 1, 119334 Moscow, Russia;
| | - Oleg S. Mozgovoj
- Institute of Petrochemistry and Catalysis of Russian Academy of Sciences, Prospekt Oktyabrya 141, 450075 Ufa, Russia; (T.P.Z.); (O.S.M.)
| | - Ilfir R. Ramazanov
- Institute of Petrochemistry and Catalysis of Russian Academy of Sciences, Prospekt Oktyabrya 141, 450075 Ufa, Russia; (T.P.Z.); (O.S.M.)
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11
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Wu YJ, Ma C, Qiao JF, Cheng XY, Liang YF. Nickel-catalysed highly regioselective synthesis of β-acyl naphthalenes under reductive conditions. Chem Commun (Camb) 2024; 60:5723-5726. [PMID: 38742267 DOI: 10.1039/d4cc01660b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Over the past decade, significant progress has been made in the direct C-H acylation of naphthalenes, occurring at the α or β-positions to yield valuable ketones through Friedel-Crafts acylation or transition-metal-catalysed carbonylative coupling reactions. Nevertheless, highly regioselective acylation of naphthalenes remains a formidable challenge. Herein, we developed a nickel-catalysed reductive ring-opening reaction of 7-oxabenzonorbornadienes with acyl chlorides as the electrophilic coupling partner, providing a new method for the exclusive preparation of β-acyl naphthalenes.
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Affiliation(s)
- Yu-Juan Wu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Chen Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Jia-Fan Qiao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Xiao-Yu Cheng
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Yu-Feng Liang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
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12
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Elgammal WE, Shaban SS, Eliwa EM, Halawa AH, Abd El-Gilil SM, Hassan RA, Abdou AM, Elhagali GA, Reheim MA. Thiazolation of phenylthiosemicarbazone to access new thiazoles: anticancer activity and molecular docking. Future Med Chem 2024; 16:1219-1237. [PMID: 38989988 PMCID: PMC11247539 DOI: 10.1080/17568919.2024.2342668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/04/2024] [Indexed: 07/12/2024] Open
Abstract
Aim: Novel thiazole hybrids were synthesized via thiazolation of 4-phenylthiosemicarbazone (4). Materials & methods: The anticancer activity against the NCI 60 cancer cell line panel. Results: Methyl 2-(2-((1-(naphthalen-2-yl)ethylidene)hydrazineylidene)-4-oxo-3-phenylthiazolidin-5-ylidene)acetate (6a) showed significant anticancer activity at 10 μM with a mean growth inhibition (GI) of 51.18%. It showed the highest cytotoxic activity against the ovarian cancer OVCAR-4 with an IC50 of 1.569 ± 0.06 μM. Compound 6a inhibited PI3Kα with IC50 = 0.225 ± 0.01 μM. Moreover, compound 6a revealed a decrease of Akt and mTOR phosphorylation in OVCAR-4 cells. In addition, antibacterial activity showed that compounds 11 and 12 were the most active against Staphylococcus aureus. Conclusion: Compound 6a is a promising molecule that could be a lead candidate for further studies.
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Affiliation(s)
- Walid E Elgammal
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Safaa S Shaban
- Chemistry Department, Faculty of Science, Ain Shams University, 11566, Cairo, Egypt
| | - Essam M Eliwa
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, 11884, Cairo, Egypt
- Institute of Chemistry of Strasbourg, UMR 7177-LCSOM, CNRS, Strasbourg University, 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Ahmed H Halawa
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Shimaa M Abd El-Gilil
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City, 11754, Cairo, Egypt
| | - Rasha A Hassan
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Amr M Abdou
- Department of Microbiology & Immunology, National Research Centre, Dokki, Giza, 12622, Egypt
| | - Gameel Am Elhagali
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Mam Abdel Reheim
- Department of Chemistry, Faculty of Science, Arish University, Arish, 45511, Egypt
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13
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Wei X, Cai T, Zhang Z, Luo Y, Shang T, Shen H, Xu H, Yu L, Luo X, Yu G, Shen R. ortho-Alkynyl Benzyl Alcohols as C6 Synthons in Regioselective Construction of Polysubstituted Naphthalenes. J Org Chem 2024. [PMID: 38738759 DOI: 10.1021/acs.joc.4c00491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
A straightforward methodology for the assembly of polysubstituted naphthalenes from ortho-alkynyl benzyl alcohols, enabled by using catalytic amounts of Tf2O, has been developed. This transformation not only features transition-metal free and without using other bases and additives but also provides a new synthetic application for ortho-alkynyl benzyl alcohols, i.e., as C6 synthons for the construction of PAHs.
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Affiliation(s)
- Xuemei Wei
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing University, Shaoxing312000, China
| | - Tao Cai
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing University, Shaoxing312000, China
| | - Zhebing Zhang
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Yanjuan Luo
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing University, Shaoxing312000, China
| | - Tianbo Shang
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing University, Shaoxing312000, China
| | - Hualiang Shen
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing University, Shaoxing312000, China
| | - Huiting Xu
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing University, Shaoxing312000, China
| | - Lemao Yu
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Xiang Luo
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Guoqi Yu
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing University, Shaoxing312000, China
| | - Runpu Shen
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing University, Shaoxing312000, China
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14
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Carabadjac I, Vormittag LC, Muszer T, Wuth J, Ulbrich MH, Heerklotz H. Transfer of ANS-Like Drugs from Micellar Drug Delivery Systems to Albumin Is Highly Favorable and Protected from Competition with Surfactant by "Reserved" Binding Sites. Mol Pharm 2024; 21:2198-2211. [PMID: 38625037 DOI: 10.1021/acs.molpharmaceut.3c00875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Micellar drug delivery systems (MDDS) for the intravenous administration of poorly soluble drugs have great advantages over alternative formulations in terms of the safety of their excipients, storage stability, and straightforward production. A classic example is mixed micelles of glycocholate (GC) and lecithin, both endogenous substances in human blood. What limits the use of MDDS is the complexity of the transitions after injection. In particular, as the MDDS disintegrate partially or completely after injection, the drug has to be transferred safely to endogenous carriers in the blood, such as human serum albumin (HSA). If this transfer is compromised, the drug might precipitate─a process that needs to be excluded under all circumstances. The key question of this paper is whether the high local concentration of GC at the moment and site of MDDS dissolution might transiently saturate HSA binding sites and, hence, endanger quick drug transfer. To address this question, we have used a new approach, which is time-resolved fluorescence spectroscopy of the single tryptophan in HSA, Trp-214, to characterize the competitive binding of GC and the drug substitute anilinonaphthalenesulfonate (ANS) to HSA. Time-resolved fluorescence of Trp-214 showed important advantages over established methods for tackling this problem. ANS has been the standard "model drug" to study albumin binding for decades, given its structural similarity to the class of naphthalene-containing acidic drugs and the fact that it is displaced from HSA by numerous drugs (which presumably bind to the same sites). Our complex global fit uses the critical approximation that the average lifetimes behave similarly to a single lifetime, but the resulting errors are found to be moderate and the results provide a convincing explanation of the, at first glance, counterintuitive behavior. Accordingly, and largely in line with the literature, we observed two types of sites binding ANS at HSA: 3 type A, rather peripheral, and 2 type B, likely more central sites. The latter quench Trp-214 by Förster Resonance Energy Transfer (FRET) with a rate constant of ≈0.4 ns-1 per ANS. Adding millimolar concentrations of GC displaces ANS from the A sites but not from B sites. At incomplete ANS saturation, this causes a GC-induced translocation of ANS from A to the more FRET-active B sites. This leads to the apparent paradox that the partial displacement of ANS from HSA increases its quenching effect on Trp-214. The most important conclusion is that (ANS-like) drugs cannot be displaced from the type-B sites, and consequently, drug transfer to these sites is not impaired by competitive binding of GC in the vicinity of a dissolving micelle. The second conclusion is that for unbound GC above the CMC (9 mM), ANS equilibrates between HSA and GC micelles but with a strong preference for free sites on HSA. That means that even persisting micelles would lose their cargo readily once exposed to HSA. For all MDDS sharing this property, targeted drug delivery approaches involving them as the nanocarrier would be pointless.
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Affiliation(s)
- Iulia Carabadjac
- Institute of Pharmaceutical Sciences, University of Freiburg, Hermann-Herder-Str. 9, 79104 Freiburg, Germany
| | - Leonie C Vormittag
- Institute of Pharmaceutical Sciences, University of Freiburg, Hermann-Herder-Str. 9, 79104 Freiburg, Germany
| | - Thomas Muszer
- Institute of Pharmaceutical Sciences, University of Freiburg, Hermann-Herder-Str. 9, 79104 Freiburg, Germany
| | - Jakob Wuth
- Institute of Pharmaceutical Sciences, University of Freiburg, Hermann-Herder-Str. 9, 79104 Freiburg, Germany
| | - Maximilian H Ulbrich
- Department of Neuroanatomy, Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Albertstr. 17, 79104 Freiburg, Germany
- BIOSS Centre for Biological Signalling Studies, Schan̈zlestr. 18, Freiburg 79104, Germany
| | - Heiko Heerklotz
- Institute of Pharmaceutical Sciences, University of Freiburg, Hermann-Herder-Str. 9, 79104 Freiburg, Germany
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto M5s 3M2, Ontario, Canada
- BIOSS Centre for Biological Signalling Studies, Schan̈zlestr. 18, Freiburg 79104, Germany
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15
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Cheng F, Zhang T, Yang H, Liu Y, Qu J, Zhang YN, Peijnenburg WJGM. Effects of dissolved organic matter and halogen ions on phototransformation of pharmaceuticals and personal care products in aquatic environments. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134033. [PMID: 38521033 DOI: 10.1016/j.jhazmat.2024.134033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/01/2024] [Accepted: 03/12/2024] [Indexed: 03/25/2024]
Abstract
Photochemical reactions contribute to the attenuation and transformation of pharmaceuticals and personal care products (PPCPs) in surface natural waters. Nevertheless, effects of DOM and halogen ions on phototransformation of PPCPs remain elusive. This work selected disparate PPCPs as target pollutants to investigate their aquatic phototransformation processes. Results show that PPCPs containing multiple electron-donating groups (-OH, -NH2, -OR, etc.) are more reactive with photochemically produced reactive intermediates (PPRIs) such as triplet DOM (3DOM*), singlet oxygen (1O2), and reactive halogen species (RHSs), relative to PPCPs containing electron-withdrawing groups (-NOR, -COOR, -OCR, etc.). The generation of RHSs as a result of the coexistance of DOM and halide ions changed the contribution of PPRIs to the photochemical conversion of PPCPs during their migration from fresh water to seawater. For PPCPs (AMP, SMZ, PN, NOR, CIP, etc) with highly reactive groups toward RHSs, the generation of RHSs facilitated their photolysis in halide ion-rich waters, where Cl- plays a critical role in the photochemical transformation of PPCPs. Density functional theory (DFT) calculations showed that single electron transfer and H-abstraction are main reaction pathways of RHSs with the PPCPs. These results demonstate the irreplaceable roles of PPRIs and revealing the underlying reaction mechanisms during the phototransformation of PPCPs, which contributes to a better understanding of the environmental behaviors of PPCPs in complex aquatic environments.
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Affiliation(s)
- Fangyuan Cheng
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Tingting Zhang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Hao Yang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Yue Liu
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Jiao Qu
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Ya-Nan Zhang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China.
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences, Leiden University, Leiden, the Netherlands; National Institute of Public Health and the Environment (RIVM), Center for Safety of Substances and Products, Bilthoven, the Netherlands
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16
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Yaashikaa PR, Karishma S, Kamalesh R, A S, Vickram AS, Anbarasu K. A systematic review on enhancement strategies in biochar-based remediation of polycyclic aromatic hydrocarbons. CHEMOSPHERE 2024; 355:141796. [PMID: 38537711 DOI: 10.1016/j.chemosphere.2024.141796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 12/25/2023] [Accepted: 03/23/2024] [Indexed: 04/07/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are pervasive ecological pollutants produced essentially during the inadequate burning of organic materials. PAHs are a group of different organic compounds that are made out of various aromatic rings. PAHs pose a serious risk to humans and aquatic ecosystems because of their mutagenic and carcinogenic properties. In this way, there is a critical prerequisite to utilizing successful remediation strategies and methods to limit the dangerous effect of these pollutants on the ecosystem. Biochar has believed of intriguing properties such as simple manufacturing operations and more affordable and more productive materials. Biochar is a sustainable carbonaceous material that has an enormous surface area with bountiful functional groups and pore structure, which has huge potential for the remediation of toxic pollutants. This review emphasizes the occurrence, development, and fate of toxic PAHs in the environment. In the present review, the properties and role of biochar in the removal of PAHs were illustrated, and the influencing factors and an efficient key mechanism of biochar for the remediation of PAHs were discussed in detail. Various surface modification methods can be utilized to improve the biochar properties with the magnetization process; the advancements of modified biochar are pointed out in this review. Finally, the constraints and prospects for the large-scale application of biochar in the remediation of toxic pollutants are highlighted.
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Affiliation(s)
- P R Yaashikaa
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - S Karishma
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - R Kamalesh
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - Saravanan A
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
| | - A S Vickram
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - K Anbarasu
- Department of Bioinformatics, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
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17
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Alzahrani AY, Gomha SM, Zaki ME, Farag B, Abdelgawad FE, Mohamed MA. Chitosan-sulfonic acid-catalyzed green synthesis of naphthalene-based azines as potential anticancer agents. Future Med Chem 2024; 16:647-663. [PMID: 38385167 DOI: 10.4155/fmc-2023-0351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/05/2024] [Indexed: 02/23/2024] Open
Abstract
Aim: This study focuses on advancing green chemistry in anticancer drug discovery, particularly through the synthesis of azine derivatives with a naphthalene core using CS-SO3H as a catalyst. Methods: Novel benzaldazine and ketazine derivatives were synthesized using (E)-(naphthalen-1-ylmethylene)hydrazine and various carbonyl compounds. The methods employed included thermal and grinding techniques, utilizing CS-SO3H as an eco-friendly and cost-effective catalyst. Results: The approach resulted in high yields, short reaction times and demonstrated catalyst reusability. Cytotoxicity tests highlighted compounds 3b, 11 and 13 as potent against the HEPG2-1. Conclusion: This study successfully aligns with the objectives of eco-conscious drug development in organic chemistry. Molecular docking and in silico studies further indicate the potential of these ligands as antitumor medicines, with favorable oral bioavailability properties.
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Affiliation(s)
- Abdullah Ya Alzahrani
- Department of Chemistry, Faculty of Science & Arts, King Khalid University, Mohail Assir, Saudi Arabia
| | - Sobhi M Gomha
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, 42351, Saudi Arabia
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Magdi Ea Zaki
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Basant Farag
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | - Fathy E Abdelgawad
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, 42351, Saudi Arabia
| | - Mahmoud A Mohamed
- Technology of Textile Department, Faculty of Technology & Education, Beni-Suef University, Beni-Suef, 62521, Egypt
- Chemistry Department, Faculty of Science & Humanity study-Afif, Shaqra University, 11911, Saudi Arabia
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18
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Davas D, Gopalakrishnan DK, Kumar S, Anmol, Karmakar T, Vaitla J. Visible Light-Promoted Regioselective Benzannulation of Vinyl Sulfoxonium Ylides with Ynoates. JACS AU 2024; 4:1073-1080. [PMID: 38559716 PMCID: PMC10976606 DOI: 10.1021/jacsau.3c00802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 04/04/2024]
Abstract
Herein, we report a highly regioselective [4 + 2]-annulation of vinyl sulfoxonium ylides with ynoates under light-mediated conditions. The reaction proceeds through the new dienyl sulfoxonium ylide, which undergoes photolysis under blue light irradiation to give highly substituted naphthalene scaffolds. The method presented here operates at room temperature and does not require the addition of an external photosensitizer. The in situ-generated dienyl sulfoxonium ylide absorbs light and acts as a photosensitizer for the formation of arenes. The synthetic potential of these benzannulations was further illustrated by various synthetic transformations and a scale-up reaction. Moreover, control experiments and quantum chemical calculations reveal the mechanistic details of the developed reaction.
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Affiliation(s)
- Daksh
Singh Davas
- Department
of Chemistry, Indian Institute of Technology
Delhi, Hauz Khas, New Delhi110016, India
| | | | - Sandeep Kumar
- Department
of Chemistry, Indian Institute of Technology
Delhi, Hauz Khas, New Delhi110016, India
| | - Anmol
- Department
of Chemistry, Indian Institute of Technology
Delhi, Hauz Khas, New Delhi110016, India
| | - Tarak Karmakar
- Department
of Chemistry, Indian Institute of Technology
Delhi, Hauz Khas, New Delhi110016, India
| | - Janakiram Vaitla
- Department
of Chemistry, Indian Institute of Technology
Delhi, Hauz Khas, New Delhi110016, India
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19
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Ramarao J, Rambabu M, Suresh S. NHC-Catalyzed Formal [4 + 2] Annulation of o-Formyl-Tethered Michael Acceptors and Ynones to Access Highly Functionalized Naphthalene Derivatives. Org Lett 2024; 26:1780-1786. [PMID: 38411544 DOI: 10.1021/acs.orglett.3c04249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Herein we demonstrate a novel organocatalytic method to access multifunctionalized naphthalenes via an NHC-catalyzed reaction of ynones and o-formyl-tethered Michael acceptors. The presented method proceeds through an intermolecular Stetter reaction-cyclization-aromatization cascade and represents a rare example of organocatalytic benzannulation for the synthesis of substituted arenes by using ynone as a two-carbon synthon. The current method has broad substrate scope; postsynthetic transformations and gram-scale syntheses highlight the practicality of the displayed methodology.
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Affiliation(s)
- Jakkula Ramarao
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Molugumati Rambabu
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Surisetti Suresh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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20
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Yao N, Li W, Hu L, Fang N. Do mould inhibitors alter the microbial community structure and antibiotic resistance gene profiles on textiles? THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 911:168808. [PMID: 38000736 DOI: 10.1016/j.scitotenv.2023.168808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/21/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023]
Abstract
Mould inhibitors are closely associated with human health and have been extensively applied to textiles to prevent mould and insect infestations. However, the impact of these mould inhibitors on the microbial community structure on textiles and antibiotic resistance gene (ARG) profiles remains largely unexplored. In this study, testing techniques, including high-throughput quantitative PCR and Illumina sequencing, were employed to analyse the effects of three types of mould inhibitors -para-dichlorobenzene (PDCB), naphthalene, and natural camphor balls-on the composition of microbial communities and ARG profiles. The microbial mechanisms underlying these effects were also investigated. The experiments revealed that PDCB reduced the diversity of bacterial communities on textiles, whereas naphthalene and natural camphor balls exerted relatively minor effects. In contrast with bacterial diversity, PDCB enhanced the diversity of fungal communities on textiles, but significantly reduced their abundance. Naphthalene had the least impact on fungal communities; however, it notably increased the relative abundance of Basidiomycota. All three types of mould inhibitors substantially altered ARG profiles. Potential mechanisms responsible for the alterations in ARG profiles include microbial community succession and horizontal gene transfer mediated by mobile genetic elements. PDCB prominently increased the abundance of ARGs, mainly attributable to the relative enrichment of potential hosts (including certain γ-Proteobacteria and Bacillales) for specific ARGs. Thus, this study has important implications for the selection of mould inhibitors, as well as the assessment of microbial safety in textiles.
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Affiliation(s)
- Ningyuan Yao
- College of Science, The Australian National University, Canberra, ACT 2601, Australia.
| | - Wei Li
- CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Lanfang Hu
- CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Nan Fang
- CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
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21
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Tasleem M, Ullah S, Halim SA, Urooj I, Ahmed N, Munir R, Khan A, El-Kott AF, Taslimi P, Negm S, Al-Harrasi A, Shafiq Z. Synthesis of 3-hydroxy-2-naphthohydrazide-based hydrazones and their implications in diabetic management via in vitro and in silico approaches. Arch Pharm (Weinheim) 2024; 357:e2300544. [PMID: 38013251 DOI: 10.1002/ardp.202300544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 11/29/2023]
Abstract
Diabetes mellitus (DM) has prevailed as a chronic health condition and has become a serious global health issue due to its numerous consequences and high prevalence. We have synthesized a series of hydrazone derivatives and tested their antidiabetic potential by inhibiting the essential carbohydrate catabolic enzyme, "α-glucosidase." Several approaches including fourier transform infrared, 1 H NMR, and 13 C NMR were utilized to confirm the structures of all the synthesized derivatives. In vitro analysis of compounds 3a-3p displayed more effective inhibitory activities against α-glucosidase with IC50 in a range of 2.80-29.66 µM as compared with the commercially available inhibitor, acarbose (IC50 = 873.34 ± 1.67 M). Compound 3h showed the highest inhibitory potential with an IC50 value of 2.80 ± 0.03 µM, followed by 3i (IC50 = 4.13 ± 0.06 µM), 3f (IC50 = 5.18 ± 0.10 µM), 3c (IC50 = 5.42 ± 0.11 µM), 3g (IC50 = 6.17 ± 0.15 µM), 3d (IC50 = 6.76 ± 0.20 µM), 3a (IC50 = 9.59 ± 0.14 µM), and 3n (IC50 = 10.01 ± 0.42 µM). Kinetics analysis of the most potent compound 3h revealed a concentration-dependent form of inhibition by 3h with Ki value = 4.76 ± 0.0068 µM. Additionally, an in silico docking approach was applied to predict the binding patterns of all the compounds, which indicates that the hydrazide and the naphthalene-ol groups play a vital role in the binding of the compounds with the essential residues (i.e., Glu277 and Gln279) of the α-glucosidase enzyme.
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Affiliation(s)
- Mussarat Tasleem
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Saeed Ullah
- Natural and Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Ifra Urooj
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Nadeem Ahmed
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Rabia Munir
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Ajmal Khan
- Natural and Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Attalla F El-Kott
- Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia
- Department of Zoology, Faculty of Science, Damanhour University, Damanhour, Egypt
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science, Bartin University, Bartin, Turkey
| | - Sally Negm
- Department of Life Sciences, College of Science and Art Mahyel Aseer, King Khalid University, Abha, Saudi Arabia
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz, Nizwa, Sultanate of Oman
| | - Zahid Shafiq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
- Department of Pharmaceutical & Medicinal Chemistry, University of Bonn, Bonn, Germany
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22
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Babalola IT, Suleiman G. Design, synthesis, and molecular docking studies of N-substituted sulfonamides as potential anticancer therapeutics. J Taibah Univ Med Sci 2024; 19:175-183. [PMID: 38047237 PMCID: PMC10692713 DOI: 10.1016/j.jtumed.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/02/2023] [Accepted: 10/26/2023] [Indexed: 12/05/2023] Open
Abstract
Objectives The goal of this study was to design and enable development of anticancer sulfonamides by coupling amines and dansyl chloride with strategically selected substituents. The synthesized structures were characterized by NMR and mass spectrometry. In addition, molecular docking analysis was used to determine the binding ability of sulfonamides toward 1AZM, a possible drug target, as compared with that of the well-known drug acetazolamide. Methods Sulfonamides were synthesized by coupling amines and dansyl chloride under highly favorable conditions. The designed sulfonamides incorporated strategically positioned substituents to impart diverse biological properties. The synthesized structures were validated with NMR and mass spectra. Molecular docking analysis was performed to evaluate the binding affinities of the synthesized sulfonamides with the potential drug target 1AZM. Results The synthesis of sulfonamides through the coupling of amines and dansyl chloride was successfully achieved. The validation of the synthesized structures with NMR and mass spectra confirmed their chemical identities. Molecular docking analysis revealed that the synthesized sulfonamides displayed binding affinities ranging from -6.8 to -8.2 kcal/mol toward the potential drug target 1AZM. Importantly, all derivatives exhibited superior binding affinities to acetazolamide (-5.25 kcal/mol). Conclusions The coupling of amines and dansyl chloride enabled efficient, straightforward sulfonamide synthesis. The strategic design of sulfonamides with specific substituents endows diverse biological properties, including potential anti-cancer activity. The elucidation of the synthesized compounds with NMR and mass spectra confirmed their structures. Molecular docking analysis demonstrated that the synthesized sulfonamides exhibited favorable binding affinities toward the potential drug target 1AZM. Notably, all derivatives displayed higher binding affinities, ranging from -6.8 to -8.2 kcal/mol, than the recommended drug acetazolamide (-5.25 kcal/mol), thus suggesting their potential as highly effective analogues for further validation in cancer therapy.
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23
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Rode JE, Łyczko K, Kaczorek D, Kawęcki R, Dobrowolski JC. VCD spectra of chiral naphthalene-1-carboxamides in the solid-state. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123939. [PMID: 38301569 DOI: 10.1016/j.saa.2024.123939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 01/14/2024] [Accepted: 01/20/2024] [Indexed: 02/03/2024]
Abstract
The VCD spectra of chiral 2,3-dihydro-1H-benzo[de]isoquinolin-1-one (8-substituted naphthalene-1-carboxamide, BIQ) were studied in KBr pellets. The X-ray diffractometry revealed that the Me, Ph, and pClPh BIQs crystalize in the monoclinic P21, while nBu, pMePh, and oMeOPh BIQs in the orthorhombic P212121 space group. Only the Me-BIQ crystal exhibits the presence of cyclic amide dimers, while the others contain chains of the amid group hydrogen bonds. For all BIQs, except pMePh, the most intense IR band in the 1750-1550 cm-1 region is located at ca. 1680 cm-1 and is accompanied by two weak ones at ca. 1618 and 1590 cm-1. For the pMePh derivative, four almost equally intense IR bands at 1662, 1639, 1614, and 1588 cm-1 are observed. This region of the IR spectra of BIQs, but pMePh, is well reproduced by calculations based on BIQ monomers. On the other hand, the complex IR pattern of pMePh is computationally reproduced when larger crystal fragments, like octamers, are considered. Registration of the VCD spectra enabled recognizing the complexity of IR contours at ca. 1680 cm-1 by the corresponding VCD motives. For (i) Me, Ph and pClPh (R)-enantiomers, two (+)(-) bands were distinguished and for (ii) nBu and pMePh ones, one VCD band with right-side asymmetry was found. For (iii) oMeOPh the VCD pattern cannot be unambiguously assigned. Thus, the VCD spectra in the ν(C=O) range diverse the studied compounds. Among the set of molecules, pMePh has exceptional crystal geometry. Therefore, its most intense ν(C=O) band position and shape can be connected with the geometry of the hydrogen bonds, interactions, and crystal packing. Interpretation of the VCD spectra is based on linear and packed BIQ octamers. This cluster model can reproduce the main features of the solid-state VCD of BIQs.
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Affiliation(s)
- Joanna E Rode
- Institute of Nuclear Chemistry and Technology, 16 Dorodna Street 03-195, Warsaw, Poland.
| | - Krzysztof Łyczko
- Institute of Nuclear Chemistry and Technology, 16 Dorodna Street 03-195, Warsaw, Poland
| | - Dorota Kaczorek
- University of Siedlce, Faculty of Science, 3 Maja Street No 54 08-110, Siedlce, Poland
| | - Robert Kawęcki
- University of Siedlce, Faculty of Science, 3 Maja Street No 54 08-110, Siedlce, Poland
| | - Jan Cz Dobrowolski
- Institute of Nuclear Chemistry and Technology, 16 Dorodna Street 03-195, Warsaw, Poland
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24
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Ozomarisi HE, Sharpe KT, Outlaw VK. A Synthetic Route to Highly Substituted 1-Aminonaphthalenes from Readily Available Benzaldehydes. J Org Chem 2024. [PMID: 38170997 DOI: 10.1021/acs.joc.3c02324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
We report an efficient route for the synthesis of highly substituted 1-aminonaphthalenes from benzaldehydes. The method employs a stereoselective Still-Gennari modification of the Horner-Wadsworth-Emmons olefination to afford (E)-benzylidenesuccinonitrile precursors, which undergo Bronsted acid mediated benzannulation to afford 1-aminonaphthalene derivatives in 35-95% yield. The abundance of commercially available benzaldehydes, coupled with the simplicity of our method, enables many previously unexplored naphthalene substitution patterns to become readily accessible.
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Affiliation(s)
- Hamza Enesi Ozomarisi
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Kellen T Sharpe
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Victor K Outlaw
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
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25
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Jin YZ, Xin YB, Li Y, Chen XY, Man DA, Tian YS. Synthesis and Selective Anticancer Activity Evaluation of 2-phenylacrylonitrile Derivatives as Tubulin Inhibitors. Curr Med Chem 2024; 31:2090-2106. [PMID: 38384112 PMCID: PMC11071649 DOI: 10.2174/0109298673263854231009063053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/17/2023] [Accepted: 09/01/2023] [Indexed: 02/23/2024]
Abstract
OBJECTIVE This study aimed at synthesizing 13 series of novel derivatives with 2-phenylacrylonitrile, evaluating antitumor activity both in vivo and in vitro, and obtaining novel tubulin inhibitors. METHOD The 13 series of 2-phenylacrylonitrile derivatives were synthesized by Knoevenagel condensation and the anti-proliferative activities were determined by MTT assay. The cell cycle and apoptosis were analyzed by flow cytometer. Quantitative cell migration was performed using 24-well Boyden chambers. The proteins were detected by western blotting. in vitro kinetics of microtubule assembly was measured using ELISA kit for Human β-tubulin (TUBB). Molecular docking was done by Discovery Studio (DS) 2017 Client online tool. RESULTS Among the derivatives, compound 1g2a possessed strong inhibitory activity against HCT116 (IC50 = 5.9 nM) and BEL-7402 (IC50 = 7.8 nM) cells. Compound 1g2a exhibited better selective antiproliferative activities and specificities than all the positive control drugs, including taxol. Compound 1g2a inhibited proliferation of HCT116 and BEL-7402 cells by arresting them in the G2/M phase of the cell cycle, inhibited the migration of HCT116 and BEL-7402 cells and the formation of cell colonies. Compound 1g2a showed excellent tubulin polymerization inhibitory activity on HCT116 and BEL-7402 cells. The results of molecular docking analyses showed that 1g2a may inhibit tubulin to exert anticancer effects. CONCLUSION Compound 1g2a shows outstanding antitumor activity both in vivo and in vitro and has the potential to be further developed into a highly effective antitumor agent with little toxicity to normal tissues.
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Affiliation(s)
- Ye-Zhi Jin
- Key Laboratory of Natural Medicines of the Changbai Mountain, Department of Medicinal Chemistry, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, P.R. China
| | - Ya-Bing Xin
- Key Laboratory of Natural Medicines of the Changbai Mountain, Department of Medicinal Chemistry, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, P.R. China
| | - Yuan Li
- Key Laboratory of Natural Medicines of the Changbai Mountain, Department of Medicinal Chemistry, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, P.R. China
| | - Xin-Yuan Chen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Department of Medicinal Chemistry, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, P.R. China
| | - De-Ao Man
- Key Laboratory of Natural Medicines of the Changbai Mountain, Department of Medicinal Chemistry, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, P.R. China
| | - Yu-Shun Tian
- Key Laboratory of Natural Medicines of the Changbai Mountain, Department of Medicinal Chemistry, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, P.R. China
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26
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Worayuthakarn R, Boontan K, Chainok K, Ruchirawat S, Thasana N. Base-Mediated and Silver-Catalyzed Divergent Synthesis of Hydroxynaphthalenamides and Phosphorylated Dihydronaphthylamides from Enone-Oxazolones. J Org Chem 2023; 88:16520-16538. [PMID: 37974421 DOI: 10.1021/acs.joc.3c01994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
An efficient divergent approach to functionalized naphthalene derivatives, the naphthalenamides, via base-mediated and silver-catalyzed cyclization has been developed using enone-oxazolones as the precursors. This protocol utilized base in methanol with heating to construct the corresponding hydroxynaphthalenamides 2 by a C-C bond formation, oxazolone ring-opening, and aromatization in good yields. On the other hand, phosphorylated dihydronaphthylamides 3 were generated by using H-phosphonate as the phosphonating reagent in a silver-catalyzed cyclization involving the phospha-1,4-addition/intramolecular ring closure with concomitant C-P/C-C bond formation in good yields.
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Affiliation(s)
- Rattana Worayuthakarn
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Laksi, Bangkok 10210, Thailand
| | - Kanyanat Boontan
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Laksi, Bangkok 10210, Thailand
| | - Kittipong Chainok
- Thammasat University Research Unit in Multifunctional Crystalline Materials and Applications (TU-MCMA), Faculty of Science and Technology, Thammasat University, Pathumthani 12121, Thailand
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Laksi, Bangkok 10210, Thailand
- Chemical Sciences Program, Chulabhorn Graduate Institute, Laksi, Bangkok 10210, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, Ministry of Education, Science, Research and Innovation, Bangkok 10400, Thailand
| | - Nopporn Thasana
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Laksi, Bangkok 10210, Thailand
- Chemical Sciences Program, Chulabhorn Graduate Institute, Laksi, Bangkok 10210, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, Ministry of Education, Science, Research and Innovation, Bangkok 10400, Thailand
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27
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Bak JM, Song M, Shin I, Lim HN. A deconstruction-reconstruction strategy to access 1-naphthol derivatives: application to the synthesis of aristolactam scaffolds. Org Biomol Chem 2023; 21:8936-8941. [PMID: 37916683 DOI: 10.1039/d3ob01603j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
A deconstruction-reconstruction strategy for the synthesis of multisubstituted polycyclic aromatic hydrocarbons (PAHs) is delineated herein. The deconstruction step enables the synthesis of o-cyanomethylaroyl fluorides that are bifunctional substrates holding both a pro-nucleophile and an electrophile. The construction step involves a formal [4 + 2] benzannulation using o-cyanomethylaroyl fluorides and active methylenes. The utility of this synthetic method is also demonstrated by the synthesis of a tetracyclic aristolactam derivative.
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Affiliation(s)
- Jeong Min Bak
- Department of Chemistry, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
| | - Moonyeong Song
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Inji Shin
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Hee Nam Lim
- Department of Chemistry, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
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28
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Abirami A, Devan U, Ramesh R, Antony Joseph Velanganni A, Grzegorz Małecki J. Naphthoyl benzhydrazine-decorated binuclear arene Ru(II) complexes as anticancer agents targeting human breast cancer cells. Dalton Trans 2023; 52:16376-16387. [PMID: 37870147 DOI: 10.1039/d3dt02552g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Breast cancer is the most dangerous type in women and its fatality rate has increased over the past decade. To develop more potent and target-specific breast cancer drugs, six arene ruthenium(II) complexes (1-6) containing naphthoyl benzhydrazine ligands (NL1-NL3) were synthesized and characterized by analytical and spectroscopic (infrared, UV-visible, NMR and HR-MS) methods. The SC-XRD analysis of 1 and 6 demonstrates the bis N^O bidentate binding nature of ligands to ruthenium ions and a pseudo-octahedral geometry around the Ru(II) ion. Solution stability studies using UV-Vis spectroscopy evidenced the instantaneous hydrolysis of the complexes to form monoaquated species in a solution of 1 : 9 (v/v) DMSO/phosphate buffer. All the complexes were screened for their in vitro antiproliferative activities against different human breast cancer cells, including MCF-7, SkBr3, MDA-MB-468, MDA-MB-231, and non-cancerous HEK-293 cells, by an MTT assay, and they displayed good cancer cell growth inhibitory capacity with low IC50 values. Notably, complexes 2 and 5 comprising methoxy and p-cymene groups exhibited excellent cytotoxicity towards SkBr3 cells compared to clinical drug cisplatin. AO-EB and HOECHST-33342 staining assays revealed apoptotic morphological changes in complex-treated cancer cells. Further, reactive oxygen species and mitochondrial membrane potential assays validated that the complexes induce apoptotic cell death via an intrinsic mitochondrial pathway with ROS production. In addition, the apoptotic induction and the quantification of late apoptosis were established with the aid of western blot and flow cytometry analysis, respectively.
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Affiliation(s)
- Arunachalam Abirami
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli - 620 024, India.
| | - Umapathy Devan
- Molecular Oncology Laboratory, Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli - 620 024, India
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli - 620 024, India.
| | - Arockiam Antony Joseph Velanganni
- Molecular Oncology Laboratory, Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli - 620 024, India
| | - Jan Grzegorz Małecki
- Department of Crystallography, Institute of Chemistry, University of Silesia, Katowice, Poland
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29
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Li M, Li J, Li J, Zhang J, Zhao Y, Li W, Zhang Y, Hu J, Xie X, Zhang D, Li H, Zhao Q, Gao H, Liang C. Design, synthesis, and evaluation of novel pleuromutilin aryl acrylate derivatives as promising broad-spectrum antibiotics especially for combatting multi-drug resistant gram-negative bacteria. Eur J Med Chem 2023; 259:115653. [PMID: 37531743 DOI: 10.1016/j.ejmech.2023.115653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/04/2023] [Accepted: 07/13/2023] [Indexed: 08/04/2023]
Abstract
The emergence of drug-resistant strains presents a grave challenge for traditional antibiotics, underscoring the exigency of exploring novel antibacterial drugs. To address this, the present study endeavors to design and synthesize a collection of pleuromutilin aromatic acrylate derivatives, guided by combination principles. The antibacterial activity and structure-activity relationship of these derivatives were evaluated, and most of the derivatives displayed moderate to excellent antibacterial activity against both Gram-positive bacteria and Gram-negative bacteria. Among these derivatives, 5g exhibited the strongest antibacterial activity, with MIC (minimum inhibitory concentration) values ranging from 1-32 μg/mL, and a MIC value against clinically isolated drug-resistant strains of 4-64 μg/mL. Additionally, 5g exhibited negligible cytotoxicity, superior anti-mycoplasma activity, and a greater propensity to perturb bacterial cell membranes. Notably, the administration of 5g resulted in an increased survival rate of MRSA (Methicillin-resistant Staphylococcus aureus)-infected mice, with an ED50 (median effective dose) value of 9.04 mg/kg. These results indicated the potential of 5g to be further developed as an antibacterial drug for the clinical treatment of drug-resistant bacterial infections.
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Affiliation(s)
- Min Li
- College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang, 830001, PR China.
| | - Jialin Li
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Jingyi Li
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Jie Zhang
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Yuqing Zhao
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Wenying Li
- College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang, 830001, PR China
| | - Yunfei Zhang
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Jinrong Hu
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Xiaolin Xie
- Shaanxi Panlong Pharmaceutical Group Co., Ltd., Xi'an, 710025, PR China
| | - Dezhu Zhang
- Shaanxi Panlong Pharmaceutical Group Co., Ltd., Xi'an, 710025, PR China
| | - Han Li
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Qianqian Zhao
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China.
| | - Hong Gao
- Shaanxi Pioneer Biotech Co., Ltd., Xi'an, 710021, PR China
| | - Chengyuan Liang
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China.
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30
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Zhang Q, Ali T, Lin Z, Peng X. Development of 4,4'-dibromobinaphthalene analogues with potent photo-inducible DNA cross-linking capability and cytotoxicity towards breast MDA-MB 468 cancer cells. Bioorg Chem 2023; 140:106769. [PMID: 37633128 DOI: 10.1016/j.bioorg.2023.106769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/25/2023] [Accepted: 08/06/2023] [Indexed: 08/28/2023]
Abstract
Photoinduced DNA cross-linking process showed advantages of high spatio-temporal resolution and control. We have designed, synthesized, and characterized several 4,4'-dibromo binaphthalene analogues (1a-f) that can be activated by 350 nm irradiation to induce various DNA damage, including DNA interstrand cross-links (ICL) formation, strand cleavages, and alkaline labile DNA lesions. The degree and types of DNA damage induced by these compounds depend on the leaving groups of the substrates, pH value of the buffer solution, and DNA sequences. The DNA ICL products were produced from the carbocations formed via the oxidation of free radicals photo-generated from 1a-f. Most of these compounds alone exhibited minimum cytotoxicity towards cancer cells while 350 nm irradiation greatly improved their anticancer effects (up to 40-fold enhancement) because of photo-induced cellular DNA damage. This work provides guidance for further design of photo-inducible DNA cross-linking agents as potent photo-activated anticancer prodrugs with good control over toxicity and selectivity.
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Affiliation(s)
- Qi Zhang
- Department of Chemistry and Biochemistry and the Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, 3210 N. Cramer Street, Milwaukee, WI 53211, United States
| | - Taufeeque Ali
- Department of Chemistry and Biochemistry and the Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, 3210 N. Cramer Street, Milwaukee, WI 53211, United States
| | - Zechao Lin
- Department of Chemistry and Biochemistry and the Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, 3210 N. Cramer Street, Milwaukee, WI 53211, United States
| | - Xiaohua Peng
- Department of Chemistry and Biochemistry and the Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, 3210 N. Cramer Street, Milwaukee, WI 53211, United States.
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31
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Yu VK, Sycheva YS, Kairanbayeva GK, Dembitsky VM, Balabekova MK, Tokusheva AN, Seilkhanov TM, Zharkynbek TY, Balapanova AK, Tassibekov KS. Naphthaleneoxypropargyl-Containing Piperazine as a Regulator of Effector Immune Cell Populations upon an Aseptic Inflammation. Molecules 2023; 28:7023. [PMID: 37894502 PMCID: PMC10608911 DOI: 10.3390/molecules28207023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/29/2023] [Accepted: 10/03/2023] [Indexed: 10/29/2023] Open
Abstract
This study investigated the effects of aseptic inflammation and heavy metal exposure on immune responses, as well as the potential immunomodulatory properties of the newly synthesized 1-[1-(2,5-dimethoxyphenyl)-4-(naphthalene-1-yloxy)but-2-ynyl]-4-methylpiperazine complexed with β-cyclodextrin (β-CD). Aseptic inflammation was induced by a subcutaneous injection of turpentine in rats, while heavy metal exposure was achieved through a daily administration of cadmium chloride and lead acetate. The levels of immune cell populations, including cytotoxic T lymphocytes (CTL), monocytes, and granulocytes, were assessed in the spleen. The results showed that aseptic inflammation led to decreased levels of CTL, monocytes, and granulocytes on the 14th day, indicating an inflammatory response accompanied by a migration of effector cells to the inflamed tissues. The exposure to cadmium chloride and lead acetate resulted in systemic immunotoxic effects, with reduced levels of B cells, CD4+ Th cells, monocytes, and granulocytes in the spleen. Notably, piperazine complexed with β-CD (the complex) exhibited significant stimulatory effects on CD4+, CD8+, and myeloid cell populations during aseptic inflammation, even in the presence of heavy metal exposure. These findings suggest the potential immunomodulatory properties of the complex in the context of aseptic inflammation and heavy metal exposure.
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Affiliation(s)
- Valentina K. Yu
- A.B. Bekturov Institute of Chemical Sciences, 106 Sh. Ualikhanov St., Almaty 050010, Kazakhstan; (Y.S.S.); (T.Y.Z.); (K.S.T.)
| | - Yelena S. Sycheva
- A.B. Bekturov Institute of Chemical Sciences, 106 Sh. Ualikhanov St., Almaty 050010, Kazakhstan; (Y.S.S.); (T.Y.Z.); (K.S.T.)
| | - Gulgul K. Kairanbayeva
- Pathological Physiology Department, Asfendiyarov Kazakh National Medical University, 94 Tole-bi St., Almaty 050000, Kazakhstan; (G.K.K.); (M.K.B.); (A.N.T.); (A.K.B.)
| | - Valery M. Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
| | - Marina K. Balabekova
- Pathological Physiology Department, Asfendiyarov Kazakh National Medical University, 94 Tole-bi St., Almaty 050000, Kazakhstan; (G.K.K.); (M.K.B.); (A.N.T.); (A.K.B.)
| | - Aliya N. Tokusheva
- Pathological Physiology Department, Asfendiyarov Kazakh National Medical University, 94 Tole-bi St., Almaty 050000, Kazakhstan; (G.K.K.); (M.K.B.); (A.N.T.); (A.K.B.)
| | - Tulegen M. Seilkhanov
- Laboratory of Engineering Profile NMR Spectroscopy, Sh. Ualikhanov Kokshetau State University, 76 Abai St., Kokshetau 020000, Kazakhstan;
| | - Tolganay Y. Zharkynbek
- A.B. Bekturov Institute of Chemical Sciences, 106 Sh. Ualikhanov St., Almaty 050010, Kazakhstan; (Y.S.S.); (T.Y.Z.); (K.S.T.)
| | - Anar Kh. Balapanova
- Pathological Physiology Department, Asfendiyarov Kazakh National Medical University, 94 Tole-bi St., Almaty 050000, Kazakhstan; (G.K.K.); (M.K.B.); (A.N.T.); (A.K.B.)
| | - Khaidar S. Tassibekov
- A.B. Bekturov Institute of Chemical Sciences, 106 Sh. Ualikhanov St., Almaty 050010, Kazakhstan; (Y.S.S.); (T.Y.Z.); (K.S.T.)
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32
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Waghmare PS, Chinnabattigalla S, Gedu S. One-Pot Dual C-C Bond-Forming Cascade Process via Suzuki Coupling and Intramolecular Cyclocondensation: An Access to Functionalized Naphthalenes. J Org Chem 2023; 88:13392-13403. [PMID: 37722130 DOI: 10.1021/acs.joc.3c01501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Naphthyl ketones encompass a class of essential compounds of biological and industrial significance. The development of synthetic strategies to achieve naphthyl ketones in single-step reactions from readily available materials is highly desirable. Herein, domino one-pot synthesis of functionalized naphthyl ketones via intermolecular Suzuki-Miyaura coupling, followed by intramolecular distal aldol-type condensation with the γ-methyl/methylene groups is reported. The present strategy displayed a comprehensive substrate scope and good functional group tolerance and enabled access to a variety of substituted naphthyl ketones, including aromatic-aliphatic hybrid frameworks of interesting structural features starting from the easily accessible starting materials such as α-iodoenone and 2-formylphenylboronic acids as well as 2-formylphenylboronic acid pinacol esters.
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Affiliation(s)
- Pradip S Waghmare
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | | | - Satyanarayana Gedu
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
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33
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Recio L, Fowler J, Martin L, Swartz C. Genotoxicity assessment in HepaRG™ cells as a new approach methodology follow up to a positive response in the human TK6 cell micronucleus assay: Naphthalene case study. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2023; 64:458-465. [PMID: 37704589 DOI: 10.1002/em.22575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/15/2023]
Abstract
We are evaluating the use of metabolically competent HepaRG™ cells combined with CometChip® for DNA damage and the micronucleus (MN) assay as a New Approach Methodology (NAM) alternative to animals for follow up genotoxicity assessment to in vitro positive genotoxic response. Naphthalene is genotoxic in human TK6 cells inducing a nonlinear dose-response for the induction of micronuclei in the presence of rat liver S9. of naphthalene. In HepaRG™ cells, naphthalene genotoxicity was assessed using either 6 (CometChip™) or 12 concentrations of naphthalene (MN assay) with the top dose used for assessment of genotoxicity for the Comet and MN assay was 1.25 and 1.74 mM respectively, corresponding to approximately 45% cell survival. In contrast to human TK6 cell with S9, naphthalene was not genotoxic in either the HepaRG™ MN assay or the Comet assay using CometChip®. The lack of genotoxicity in both the MN and comet assays in HepaRG™ cells is likely due to Phase II enzymes removing phenols preventing further bioactivation to quinones and efficient detoxication of naphthalene quinones or epoxides by glutathione conjugation. In contrast to CYP450 mediated metabolism, these Phase II enzymes are inactive in rat liver S9 due to lack of appropriate cofactors causing a positive genotoxic response. Rat liver S9-derived BMD10 over-predicts naphthalene genotoxicity when compared to the negative genotoxic response observed in HepaRG™ cells. Metabolically competent hepatocyte models like HepaRG™ cells should be considered as human-relevant NAMs for use genotoxicity assessments to reduce reliance on rodents.
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Affiliation(s)
- Leslie Recio
- Integrated Laboratory Systems, an Inotiv Company, Morrisville, North Carolina, USA
| | - Jasmine Fowler
- Integrated Laboratory Systems, an Inotiv Company, Morrisville, North Carolina, USA
| | - Lincoln Martin
- Integrated Laboratory Systems, an Inotiv Company, Morrisville, North Carolina, USA
| | - Carol Swartz
- Integrated Laboratory Systems, an Inotiv Company, Morrisville, North Carolina, USA
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Salem M, Mahrous EM, Ragab EA, Nafie MS, Dawood KM. Synthesis and Anti-Breast Cancer Potency of Mono- and Bis-(pyrazolyl[1,2,4]triazolo[3,4- b][1,3,4]thiadiazine) Derivatives as EGFR/CDK-2 Target Inhibitors. ACS OMEGA 2023; 8:35359-35369. [PMID: 37779952 PMCID: PMC10536063 DOI: 10.1021/acsomega.3c05309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023]
Abstract
The target mono- and bis-(6-pyrazolyltriazolo-thiadiazine) derivatives 4a-c and 6a-d were synthesized using a straightforward protocol via reaction of 3-bromoacetylpyrazole 2 with 4-amino-s-triazole-3-thiols 3a-c and bis(4-amino-5-mercapto-s-triazol-3-yl)alkanes 5a-d, respectively. The bis(6-pyrazolyl-s-triazolo[3,4-b][1,3,4]thiadiazine) derivatives 8a,b and 10 were also constructed by reaction of the triazolo[3,4-b][1,3,4]thiadiazine-3-thiol 4c with the proper dibromo compounds 7a,b and 9, respectively. Structures of the new substances were determined by spectroscopic and analytical data. Compounds 4b, 4c, and 6a showed potent cytotoxicity against MCF-7 (IC50 = 3.16, 2.74, and 0.39 μM, respectively) and were safe against the MCF-10A cells. Compounds 4b, 4c, and 6a also showed promising dual EGFR and CDK-2 inhibition activities, particularly 6a was the most effective (IC50 = 19.6 and 87.9 nM, respectively), better than Erlotinib and Roscovitine. Compound 6a treatment induced EGFR and CDK-2 enzyme inhibition by 97.18% and 94.11%, respectively, at 10 μM (the highest concentration). Compound 6a notably induced cell apoptosis in MCF-7 cells, increasing the cell population by total apoptosis 43.3% compared to 1.29% for the untreated control group, increasing the cell population at the S-phase by 39.2% compared to 18.6% (control).
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Affiliation(s)
- Mostafa
E. Salem
- Department
of Chemistry, Faculty of Science, Cairo
University, Giza 12613, Egypt
- Department
of Chemistry, College of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Esraa M. Mahrous
- Department
of Chemistry, Faculty of Science, Cairo
University, Giza 12613, Egypt
| | - Eman A. Ragab
- Department
of Chemistry, Faculty of Science, Cairo
University, Giza 12613, Egypt
| | - Mohamed S. Nafie
- Chemistry
Department, College of Sciences, University
of Sharjah, P. O. Box 27272, Sharjah 27272, United Arab
Emirates
- Department
of Chemistry (Biochemistry Program), Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Kamal M. Dawood
- Department
of Chemistry, Faculty of Science, Cairo
University, Giza 12613, Egypt
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Salem ME, Mahrous EM, Ragab EA, Nafie MS, Dawood KM. Synthesis of novel mono- and bis-pyrazolylthiazole derivatives as anti-liver cancer agents through EGFR/HER2 target inhibition. BMC Chem 2023; 17:51. [PMID: 37291635 DOI: 10.1186/s13065-023-00921-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 02/23/2023] [Indexed: 06/10/2023] Open
Abstract
3-Bromoacetyl-4-(2-naphthoyl)-1-phenyl-1H-pyrazole (6) was synthesized from 2-acetylnaphthalene and was used as a new key building block for constructing the title targets. Thus, the reaction of 6 with the thiosemicarbazones 7a-d and 9-11 afforded the corresponding simple naphthoyl-(3-pyrazolyl)thiazole hybrids 8a-d and 12 ~ 14. The symmetric bis-(2-naphthoyl-pyrazol-3-yl)thiazol-2-yl)hydrazono)methyl)phenoxy)alkanes 18a-c and 21a-c were similarly synthesized from reaction of 6 with the appropriate bis-thiosemicarbazones 17a-c and 19a-c, respectively. The synthesized two series of simple and symmetrical bis-molecular hybrid merging naphthalene, thiazole, and pyrazole were evaluated for their cytotoxicity. Compounds 18b,c and 21a showed the most potent cytotoxicity (IC50 = 0.97-3.57 µM) compared to Lapatinib (IC50 = 7.45 µM). Additionally, they were safe (non-cytotoxic) against the THLE2 cells with higher IC50 values. Compounds 18c exhibited promising EGFR and HER-2 inhibitory activities with IC50 = 4.98 and 9.85 nM, respectively, compared to Lapatinib (IC50 = 6.1 and 17.2 nM). Apoptosis investigation revealed that 18c significantly activated apoptotic cell death in HepG2 cells, increasing the death rate by 63.6-fold and arresting cell proliferation at the S-phase. Compound 18c upregulated P53 by 8.6-fold, Bax by 8.9-fold, caspase-3,8,9 by 9, 2.3, and 7.6-fold, while it inhibited the Bcl-2 expression by 0.34-fold. Thereby, compound 18c exhibited promising cytotoxicity against EGFR/HER2 inhibition against liver cancer.
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Affiliation(s)
- Mostafa E Salem
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Esraa M Mahrous
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Eman A Ragab
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Mohamed S Nafie
- Department of Chemistry (Biochemistry program), Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
| | - Kamal M Dawood
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt.
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Wang Z, Li J, Liu Y, Chen Q, Zhang P, Wu J. Direct a-C(sp3)-H thioetheration/selenylation of nafimidone derivatives enabled by electrocatalysis. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Sanders BC, Pokhrel S, Labbe AD, Mathews II, Cooper CJ, Davidson RB, Phillips G, Weiss KL, Zhang Q, O'Neill H, Kaur M, Schmidt JG, Reichard W, Surendranathan S, Parvathareddy J, Phillips L, Rainville C, Sterner DE, Kumaran D, Andi B, Babnigg G, Moriarty NW, Adams PD, Joachimiak A, Hurst BL, Kumar S, Butt TR, Jonsson CB, Ferrins L, Wakatsuki S, Galanie S, Head MS, Parks JM. Potent and selective covalent inhibition of the papain-like protease from SARS-CoV-2. Nat Commun 2023; 14:1733. [PMID: 36977673 PMCID: PMC10044120 DOI: 10.1038/s41467-023-37254-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 03/08/2023] [Indexed: 03/30/2023] Open
Abstract
Direct-acting antivirals are needed to combat coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). The papain-like protease (PLpro) domain of Nsp3 from SARS-CoV-2 is essential for viral replication. In addition, PLpro dysregulates the host immune response by cleaving ubiquitin and interferon-stimulated gene 15 protein from host proteins. As a result, PLpro is a promising target for inhibition by small-molecule therapeutics. Here we design a series of covalent inhibitors by introducing a peptidomimetic linker and reactive electrophile onto analogs of the noncovalent PLpro inhibitor GRL0617. The most potent compound inhibits PLpro with kinact/KI = 9,600 M-1 s-1, achieves sub-μM EC50 values against three SARS-CoV-2 variants in mammalian cell lines, and does not inhibit a panel of human deubiquitinases (DUBs) at >30 μM concentrations of inhibitor. An X-ray co-crystal structure of the compound bound to PLpro validates our design strategy and establishes the molecular basis for covalent inhibition and selectivity against structurally similar human DUBs. These findings present an opportunity for further development of covalent PLpro inhibitors.
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Affiliation(s)
- Brian C Sanders
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.
| | - Suman Pokhrel
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
- Biological Sciences Division, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Audrey D Labbe
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | | | - Connor J Cooper
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | | | - Gwyndalyn Phillips
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Kevin L Weiss
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Qiu Zhang
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Hugh O'Neill
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Manat Kaur
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jurgen G Schmidt
- B-11 Bioenergy and Biome Sciences, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Walter Reichard
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Surekha Surendranathan
- Regional Biocontainment Laboratory, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Jyothi Parvathareddy
- Regional Biocontainment Laboratory, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Lexi Phillips
- Institute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, USA
| | | | | | - Desigan Kumaran
- Biology Department, Brookhaven National Laboratory, Upton, NY, USA
| | - Babak Andi
- Center for BioMolecular Structure, National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, USA
| | - Gyorgy Babnigg
- Center for Structural Genomics of Infectious Diseases, Consortium for Advanced Science and Engineering, University of Chicago, Chicago, IL, USA
- Biosciences Division, Argonne National Laboratory, Argonne, IL, USA
| | - Nigel W Moriarty
- Molecular Biosciences and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Paul D Adams
- Molecular Biosciences and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Bioengineering, University of California, Berkeley, CA, USA
| | - Andrzej Joachimiak
- Center for Structural Genomics of Infectious Diseases, Consortium for Advanced Science and Engineering, University of Chicago, Chicago, IL, USA
- Structural Biology Center, X-ray Science Division, Argonne National Laboratory, Argonne, IL, USA
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - Brett L Hurst
- Institute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, USA
| | | | | | - Colleen B Jonsson
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Lori Ferrins
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, USA
| | - Soichi Wakatsuki
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA.
- Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, USA.
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA.
| | - Stephanie Galanie
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- Department of Process Research and Development, Merck & Co., Inc., Rahway, NJ, USA
| | - Martha S Head
- Joint Institute for Biological Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- Computing and Computational Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- Computational and Data Sciences, Center for Research Acceleration by Digital Innovation, Amgen, Inc., Thosand Oaks, CA, USA
| | - Jerry M Parks
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.
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Zakharov AV, Timofeeva SM, Yadykov AV, Krayushkin MM, Shirinian VZ. Skeletal photoinduced rearrangement of diarylethenes: ethene bridge effects. Org Biomol Chem 2023; 21:2015-2023. [PMID: 36790344 DOI: 10.1039/d2ob02315f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
A skeletal photorearrangement involving UV-induced 6π-electrocyclization of diarylethenes with various ethene bridges has been studied. It has been found that deprotonation is the predominant step among the three possible alternative reaction pathways (radical abstraction, deprotonation, or sigmatropic shift) following 6π-electrocyclization, and incorporation of an electronegative carbonyl group into the geminal position to the phenyl residue results in a reduction in the reaction time and an increase in the yield of the desired product. The significant increase in the reaction time in less polar solvents (toluene, TCM) also indicates a large contribution of the deprotonation step to the skeletal photorearrangement of diarylethenes. Performing the reaction in toluene in the presence of tertiary amines leads to a reduction in the reaction time and an increase in the yield of the desired product. The best results were achieved when the reaction was carried out in toluene in the presence of DIPEA. The experimental results are in good agreement with the DFT calculations.
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Affiliation(s)
- A V Zakharov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prosp., 119991 Moscow, Russian Federation.
| | - S M Timofeeva
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prosp., 119991 Moscow, Russian Federation.
| | - A V Yadykov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prosp., 119991 Moscow, Russian Federation.
| | - M M Krayushkin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prosp., 119991 Moscow, Russian Federation.
| | - V Z Shirinian
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prosp., 119991 Moscow, Russian Federation.
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Erdoğan M, Başkan C, Serdaroğlu G. Substituted naphthoxy-phthalonitrile derivatives: Synthesis, substituent effects, DFT, TD-DFT Calculations, antimicrobial properties and DNA interaction studies. Comput Biol Chem 2023; 102:107798. [PMID: 36495747 DOI: 10.1016/j.compbiolchem.2022.107798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/23/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022]
Abstract
Herein, substituted-naphthol derivatives 4a-e were synthesized in two steps, namely the Diels Alder cycloaddition and Cu-catalyzed aromatization reactions, respectively. Then, pththalonitrile derivatives 7-12 have been prepared by a nucleophilic displacement reaction of 3-nitrophthalonitrile with the naphthol derivatives 4a-e, 5 and, obtained in excellent yields. Structural characterization of the compounds was identified by different spectroscopic techniques. Antimicrobial properties of the synthesized compounds were determined by the microdilution procedure against Gram-positive, Gram-negative bacteria, and yeast. Furthermore, the DNA interaction of the compounds were determined by gel electrophoresis. One of the most prominent findings is that compounds 9 and 10 have more inhibitory effects on Gram-positive bacteria than Gram-negative bacteria. These compounds especially exhibited the highest antibacterial potency against S. aureus (625 µg/mL) among Gram-positive bacteria. According to the plasmid DNA interaction results, the synthesized compounds caused changes in the structure and mobility of the plasmid DNA. Then, geometry optimizations and frequency calculations were conducted at B3LYP/6-311 G(d,p) level of DFT, and optimized structures were used for further analyses. The NBO results revealed that the π→π * and n→π * interactions were greatly contributed to lowering the stabilization energy of all compounds (7-12). FMO energy analyses showed that compound 9 has the biggest electrodonating power.
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Affiliation(s)
- Musa Erdoğan
- Department of Food Engineering, Faculty of Engineering and Architecture, Kafkas University, Kars 36100, Turkey.
| | - Ceren Başkan
- Sabuncuoğlu Şerefeddin Health Services, Vocational School, Amasya University, Amasya, Turkiye.
| | - Goncagül Serdaroğlu
- Sivas Cumhuriyet University, Faculty of Education, Math. and Sci. Edu., 58140 Sivas, Turkey.
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Quiclet-Sire B, Zard SZ. The xanthate route to tetralones, tetralins, and naphthalenes. A brief account. Org Biomol Chem 2023; 21:910-924. [PMID: 36607600 DOI: 10.1039/d2ob02159e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The present account summarises routes to tetralones, tetralines, and naphthalenes based on the chemistry of xanthates developed in the authors' laboratory. The degenerative reversible transfer of xanthates allows radical addition even to unactivated, electronically unbiased alkenes, and tolerates a broad range of functional groups, in particular common polar groups such as esters, ketones, nitriles, amides, carbamates, etc. Xanthates also allow radical ring closures onto aromatic rings. This feature, in combination with the intermolecular addition to alkenes, can be used to construct tetralones and tetralines. With the appropriate appendages, the former can be converted into napthalenes with a variety of substitution patterns. This translates into a convergent approach to a vast array of building blocks of interest to the pharmaceutical and agrochemical industries, and to material sciences.
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Affiliation(s)
- Béatrice Quiclet-Sire
- Laboratoire de Synthèse Organique UMR 7652, Ecole Polytechnique, 91128 Palaiseau, France.
| | - Samir Z Zard
- Laboratoire de Synthèse Organique UMR 7652, Ecole Polytechnique, 91128 Palaiseau, France.
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Identification of anti-Mycobacterium tuberculosis agents targeting the interaction of bacterial division proteins FtsZ and SepF. Acta Pharm Sin B 2023; 13:2056-2070. [PMID: 37250168 PMCID: PMC10213792 DOI: 10.1016/j.apsb.2023.01.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/23/2022] [Accepted: 01/08/2023] [Indexed: 02/05/2023] Open
Abstract
Tuberculosis (TB) is one of the deadly diseases caused by Mycobacterium tuberculosis (Mtb), which presents a significant public health challenge. Treatment of TB relies on the combination of several anti-TB drugs to create shorter and safer regimens. Therefore, new anti-TB agents working by different mechanisms are urgently needed. FtsZ, a tubulin-like protein with GTPase activity, forms a dynamic Z-ring in cell division. Most of FtsZ inhibitors are designed to inhibit GTPase activity. In Mtb, the function of Z-ring is modulated by SepF, a FtsZ binding protein. The FtsZ/SepF interaction is essential for FtsZ bundling and localization at the site of division. Here, we established a yeast two-hybrid based screening system to identify inhibitors of FtsZ/SepF interaction in M. tuberculosis. Using this system, we found compound T0349 showing strong anti-Mtb activity but with low toxicity to other bacteria strains and mice. Moreover, we have demonstrated that T0349 binds specifically to SepF to block FtsZ/SepF interaction by GST pull-down, fluorescence polarization (FP), surface plasmon resonance (SPR) and CRISPRi knockdown assays. Furthermore, T0349 can inhibit bacterial cell division by inducing filamentation and abnormal septum. Our data demonstrated that FtsZ/SepF interaction is a promising anti-TB drug target for identifying agents with novel mechanisms.
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Habib MR, Hamed AA, Ali REM, Zayed KM, Gad El-Karim RM, Sabour R, Abu El-Einin HM, Ghareeb MA. Thais savignyi tissue extract: bioactivity, chemical composition, and molecular docking. PHARMACEUTICAL BIOLOGY 2022; 60:1899-1914. [PMID: 36200747 PMCID: PMC9553184 DOI: 10.1080/13880209.2022.2123940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 08/15/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
CONTEXT Thais savignyi Deshayes (Muricidae) is widely distributed in the Red Sea. Its abundance and the history of Muricidae in traditional medicine make it a tempting target for investigation. OBJECTIVE To investigate the chemical profile and biological activities of T. savignyi tissue extracts. MATERIALS AND METHODS Methanol, ethanol, acetone, and ethyl acetate extracts from T. savignyi tissue were compared in their antioxidant by total antioxidant capacity, DPPH free radical scavenging, and total phenolic content. In addition, the antimicrobial, and antibiofilm properties (at 250 µg/mL) of the extracts were tested against Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, Klebsiella pneumoniae, Staphylococcus aureus, and Candida albicans. The antioxidant extract with greatest activity was assessed for cytotoxicity (range 0.4-100 µg/mL) against 3 human cancer cell lines (UO-31, A549 and A431), and its chemical composition was investigated using GC-MS. Moreover, docking simulation was performed to predict its constituents' binding modes/scores to the active sites of thymidylate kinase. RESULTS The ethyl acetate extract (Ts-EtOAc) showed the highest total antioxidant capacity (551.33 mg AAE/g dry weight), total phenolics (254.46 mg GAE/g dry weight), and DPPH scavenging (IC50= 24.0 µg/mL). Ts-EtOAc exhibited strong antibacterial (MIC: 3.9 µg/mL against K. pneumoniae), antibiofilm (MIC: 7.81 µg/mL against S. aureus), and antifungal (MIC: 3.9 µg/mL against C. albicans) activities and considerable cytotoxicity against cancer cells (UO-31: IC50= 19.96 ± 0.93, A549: IC50= 25.04 ± 1.15 μg/mL). GC-MS identified multiple bioactive metabolites in Ts-EtOAc extract belonging to miscellaneous chemical classes. Molecular docking studies revealed that the constituents of Ts-EtOAc have antibacterial potential. DISCUSSION AND CONCLUSIONS T. savignyi extract has considerable antimicrobial and cytotoxic activities. Further studies are needed to isolate the active constituents of this snail for comprehensive drug discovery tests.
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Affiliation(s)
- Mohamed R. Habib
- Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Ahmed A. Hamed
- Microbial Chemistry Department, National Research Center, Giza, Egypt
| | - Rasha E. M. Ali
- Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Khaled M. Zayed
- Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | | | - Rehab Sabour
- Pharmaceutical Medicinal Chemistry and Drug Design Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | | | - Mosad A. Ghareeb
- Medicinal Chemistry Department, Theodor Bilharz Research Institute, Giza, Egypt
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Nigussie G, Tegegn M, Abeje D, Melak H. A comprehensive review of the ethnomedicine, phytochemistry, pharmacological activities of the genus Kniphofia. PHARMACEUTICAL BIOLOGY 2022; 60:1177-1189. [PMID: 35701101 PMCID: PMC9477484 DOI: 10.1080/13880209.2022.2085753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 05/18/2022] [Accepted: 05/29/2022] [Indexed: 06/15/2023]
Abstract
CONTEXT Kniphofia (Asphodelaceae) is found mainly in South Africa and Tropical Africa. Malaria, hepatitis B, blood purifier, cancer, eczema, and female infertility have all been traditionally treated using this genus. OBJECTIVE The current review provides a complete and up-to-date compilation of documented traditional medicinal uses, phytochemicals, and pharmacological activities of the genus. METHOD Relevant literature was collected by searching the major electronic scientific databases including PubMed, Science Direct, Web of Science, and Google Scholar using appropriate keywords ethnomedicinal studies, phytochemical investigations, and pharmacological activities of Kniphofia species. The search strategy included all articles with descriptors that were available until November 30, 2021. Only published works in English were used for this study. The data were collected using textual descriptions of the studies, tabulation, grouping, and figures. RESULT At present, more than 40 compounds have been isolated from different parts of Kniphofia species. The major compounds isolated from the Kniphofia species are monomeric anthraquinones and dimeric anthraquinones. Pharmacologically the extracts and isolated compounds showed antioxidant, antimalarial, antiproliferative, anti-HIV-1, anti-leukotriene, and cytotoxic activity. The genus afforded exemplary drug leads such as knipholone and knipholone anthrone with anti-HIV-1, antimalarial and cytotoxicity activity. CONCLUSIONS Kniphofia species have traditionally been used to treat a variety of diseases. Pharmacological actions of phytochemicals were shown to be promising. Despite this, considering the genus's inclusion on the red data list of South Africa, it deserves more attention. In order to find novel drug candidates, more studies on promising crude extracts and compounds are needed.
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Affiliation(s)
- Gashaw Nigussie
- Department of Biotechnology and Bioinformatics, Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Metasebia Tegegn
- Department of Immunology, Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Dessalegn Abeje
- Department of Biotechnology and Bioinformatics, Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Haregua Melak
- Department of Biotechnology and Bioinformatics, Armauer Hansen Research Institute, Addis Ababa, Ethiopia
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Relationship between the Molecular Geometry and the Radiative Efficiency in Naphthyl-Based Bis-Ortho-Carboranyl Luminophores. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196565. [PMID: 36235102 PMCID: PMC9572229 DOI: 10.3390/molecules27196565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/05/2022]
Abstract
The efficiency of intramolecular charge transfer (ICT)-based emission on π-aromatic-group-appended closo-ortho-carboranyl luminophores is known to be affected by structural fluctuations and molecular geometry, but investigation of this relationship has been in progress to date. In this study, four naphthyl-based bis-o-carboranyl compounds, in which hydrogen (15CH and 26CH) or trimethysilyl groups (15CS and 26CS) were appended at the o-carborane cage, were synthesized and fully characterized. All the compounds barely displayed an emissive trace in solution at 298 K; however, 15CH and 26CH distinctly exhibited a dual emissive pattern in rigid states (in solution at 77 K and in films), attributed to locally excited (LE) and ICT-based emission, while 15CS and 26CS showed strong ICT-based greenish emission. Intriguingly, the molecular structures of the four compounds, analyzed by single X-ray crystallography, showed that the C-C bond axis of the o-carborane cage in the trimethysilyl group-appended compounds 15CS and 26CS were more orthogonal to the plane of the appended naphthyl group than those in 15CH and 26CH. These features indicate that 15CS and 26CS present an efficient ICT transition based on strong exo-π-interaction, resulting in a higher quantum efficiency (Φem) for ICT-based radiative decay than those of 15CH and 26CH. Moreover, the 26CS structure revealed most orthogonal geometry, resulting in the highest Φem and lowest knr values for the ICT-based emission. Consequently, all the findings verified that efficient ICT-based radiative decay of aromatic group-appended o-carboranyl luminophores could be achieved by the formation of a specific geometry between the o-carborane cage and the aromatic plane.
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Ragheb MA, Abdelwahab RE, Darweesh AF, Soliman MH, Elwahy AHM, Abdelhamid IA. Hantzsch-Like Synthesis, DNA Photocleavage, DNA/BSA Binding, and Molecular Docking Studies of Bis(sulfanediyl)bis(tetrahydro-5-deazaflavin) Analogs Linked to Naphthalene Core. Chem Biodivers 2022; 19:e202100958. [PMID: 36045280 DOI: 10.1002/cbdv.202100958] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 08/11/2022] [Indexed: 11/07/2022]
Abstract
The cyclocondensation reaction of aldehydes with dimedone and bis(6-aminopyrimidin-4-one) in acetic acid led to the formation of the corresponding bis(pyrimido[4,5-b]quinoline-4,6-diones) which are known as bis(sulfanediyl)bis(tetrahydro-5-deazaflavin) analogs in a single step. Also, bis(pyrimido[4,5-b]quinoline-4,6-diones) which are linked to naphthyl core via phenoxymethyl linkage is prepared. The interactions of the synthesized compounds with DNA and bovine serum albumin (BSA) were studied. Gel electrophoresis assay was used to show the capability of the compounds to photocleave the supercoiled pBR322 plasmid DNA in UV-A (365 nm). Besides, the most photocleavable compound, bis(tetrahydropyrimido[4,5-b]quinoline-4,6-dione) linked to pyridin-3-yl at position-5 exhibits good binding affinities toward CT-DNA and BSA as supported by UV/VIS spectral studies. In addition to the experimental findings, a molecular docking simulation was performed to collect detailed binding data for this compound to both biomolecules.
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Affiliation(s)
- Mohamed A Ragheb
- Department of Chemistry (Biochemistry Division), Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Reham E Abdelwahab
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Ahmed F Darweesh
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Marwa H Soliman
- Department of Chemistry (Biochemistry Division), Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Ahmed H M Elwahy
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Ismail A Abdelhamid
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
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Eliwa EM, Elgammal WE, Belal A, Abourehab MAS, Abd El-Gilil SM, Mehany ABM, Elhagali GAM. Cu(II)-Promoted the Chemical Synthesis of New Azines-Based Naphthalene Scaffold as In Vitro Potent Mushroom Tyrosinase Inhibitors and Evaluation of Their Antiproliferative Activity. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2112704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Essam M. Eliwa
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, Egypt
| | - Walid E. Elgammal
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, Egypt
| | - Amany Belal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, Taif, Saudi Arabia
| | - Mohammed A. S. Abourehab
- Department of Pharmaceutics, Faculty of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Minia University, Minia, Egypt
| | - Shimaa M. Abd El-Gilil
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City, Egypt
| | - Ahmed B. M. Mehany
- Zoology Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, Egypt
| | - Gameel A. M. Elhagali
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, Egypt
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Zeng MQ, Feng KX, Hu BL, Tu HY, Zhang XG. Ni-Catalyzed Reductive Arylalkenylation of Alkynes for the Selective Synthesis of Polysubstituted Naphthalenes. Org Lett 2022; 24:5386-5390. [PMID: 35856849 DOI: 10.1021/acs.orglett.2c02068] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Ni-catalyzed reductive arylalkenylation of alkynes with 1-bromo-2-(2-chlorovinyl)arenes in the presence of zinc powder has been developed. This base-free cyclization provides a novel protocol for the selective synthesis of 2-trifluoromethyl naphthalenes and ethyl 2-naphthoates from simple starting materials in moderate to good yields with excellent tolerance of functional groups.
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Affiliation(s)
- Meng-Qiang Zeng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Ke-Xin Feng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Bo-Lun Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hai-Yong Tu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.,Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou 542899, China
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Chalcone-amide, a privileged backbone for the design and development of selective SARS-CoV/SARS-CoV-2 papain-like protease inhibitors. Eur J Med Chem 2022; 240:114572. [PMID: 35797899 PMCID: PMC9250826 DOI: 10.1016/j.ejmech.2022.114572] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/23/2022]
Abstract
The newly emerged coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that caused the COVID-19 pandemic, is the closest relative of SARS-CoV with high genetic similarity. The papain-like protease (PLpro) is an important SARS-CoV/SARS-CoV-2 nonstructural protein that plays a critical role in some infection processes such as the generation of the functional replication complex, maturation of crude polyproteins, and regulation of the host antiviral immune responses. Therefore, the research to discover SARS-CoV-2 PLpro inhibitors could be a sensible strategy to obtain therapeutic agents for the treatment of COVID-19. Aiming to find SARS-CoV/SARS-CoV-2 PLpro inhibitors, various high throughput screenings (HTS) have been performed over the past two decades. Interestingly, the result of these efforts is the identification of hit/lead compounds whose structures have one important feature in common, namely having a chalcone-amide (N-benzylbenzamide) backbone. Structure-activity relationship (SAR) studies have shown that placing an (R)-configurated methyl group on the middle carbon adjacent to the amide group creates a unique backbone called (R)-methyl chalcone-amide, which dramatically increases PLpro inhibitory potency. Although this scaffold has not yet been introduced by medicinal chemists as a specific skeleton for the design of PLpro inhibitors, structural considerations show that the most reported PLpro inhibitors have this skeleton. This review suggests the (R)-methyl chalcone-amide scaffold as a key backbone for the design and development of selective SARS-CoV-2 PLpro inhibitors. Understanding the SAR and binding mode of these inhibitors in the active site of SARS-CoV-2 PLpro can aid the future development of anti-COVID-19 agents.
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Antioxidant, Antidiabetic, and Antibacterial Potentials and Chemical Composition of Salvia officinalis and Mentha suaveolens Grown Wild in Morocco. Adv Pharmacol Pharm Sci 2022; 2022:2844880. [PMID: 35755940 PMCID: PMC9217590 DOI: 10.1155/2022/2844880] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/24/2022] [Accepted: 05/31/2022] [Indexed: 12/18/2022] Open
Abstract
This work evaluated in vitro antioxidant, antidiabetic, and antibacterial properties of Salvia officinalis (S. officinalis) and Mentha suaveolens (M. suaveolens) essential oils (EO). The EOs were extracted, and their chemical composition was determined using GC-MS analysis. The in vitro antioxidant, antidiabetic, and antibacterial activities of S. officinalis and M. suaveolens EO were shown to be remarkable. Furthermore, S. officinalis EO demonstrated better antioxidant findings (using DPPH, ABTS, and FRAP test) than M. suaveolens EO (p < 0.5). There were no significant differences in the inhibitory effects of the EOs on α-amylase and α-glucosidase activities in the antidiabetic assays. All of the examined bacterial strains (10 different strains), with the exception of P. aeruginosa, demonstrated significant sensitivity to the tested EOs, with M. suaveolens EO exhibiting better activity than S. officinalis EO. Thus, the research indicated that EO from these two medicinal plants has considerable potential for application in the formulation of antibacterial, antioxidant, and antidiabetic pharmaceuticals. However, more research studies are required to interpret the pharmacologic action of the studied EOs and their principal constituents and to confirm their safety.
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Studies of Phytochemicals, Antioxidant, and Antibacterial Activities of Pinus gerardiana and Pinus roxburghii Seed Extracts. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5938610. [PMID: 35686234 PMCID: PMC9173889 DOI: 10.1155/2022/5938610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 05/17/2022] [Indexed: 01/07/2023]
Abstract
Pine seeds are considered as nonwood forest products (NWFP) with regularly increasing market's demand. They can be eaten in various ways such as roasted or raw. In addition, they are included in various traditional dishes like in cookies, sauces, candies, cakes, breads, and other bakery items and, moreover, for medicinal purposes. GC-MS study is performed to analyze the phytochemical compounds present in the seed extracts of Pinus roxburghii (Chir) and Pinus gerardiana (Chilgoza). In total, 25 compounds were identified each in Chir and Chilgoza. In Chir seeds, abundantly present compounds were 2,4-di-tert-butylphenol (16.6%), followed by ç-Terpinene (9.9%) and cyclohexanol, 4-ethenyl-4-methyl-3-(1-methylethenyl)-, (1à,3à,4á) (9.8%), whereas in Chilgoza seeds, the maximum amount of compound was 1-hexyl-1-nitrocyclohexane (17.3%), followed by phenol, 2,6-bis(1,1-dimethylethyl) (15.4%), and heptadecane, 2-methyl (8.4%). The total phenolic content of Chir seed sample was 1536 ± 4.35 (mg GAE/100 g), whereas in the Chilgoza seed extract was 642.66 ± 2.08 (mg GAE/100 g). The application of RP-HPLC-DAD system revealed that Chir and Chilgoza seeds have maximum quantity of catechin (15.77 ± 0.16 μg/mg and 17.49 ± 0.32 μg/mg, respectively). Both Chir and Chilgoza seed extracts exhibited significant antioxidant (radical scavenging) potential, through H2O2 (618.94 ± 21.45 μg/mL and 575.16 ± 19.88 μg/mL) and DPPH (552.60 ± 13.03 μg/mL and 429.15 ± 3.80 μg/mL) assays, respectively. Additionally, a well-known antibacterial potential was also found in both plants' dichloromethane extracts, with 64 to 256 μg/mL of minimum inhibitory concentrations. As a whole, result shows the importance of both plants as a naturally occurring phytochemical source with significant antibacterial and antioxidant activity.
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