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Pandey PK, Patra M, Ranjan P, Kumar Pal N, Choudhary S, Bera JK. A Single Terminal [Ni II-OH] Catalyst for Direct Julia-Type Olefination and α-Alkylation Involving Sulfones and Alcohols. Chemistry 2024; 30:e202400337. [PMID: 38644351 DOI: 10.1002/chem.202400337] [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: 01/26/2024] [Revised: 04/08/2024] [Accepted: 04/21/2024] [Indexed: 04/23/2024]
Abstract
A terminal [NiII-OH] complex 1, supported by triflamide-functionalized NHC ligands, showed divergent reactivity for the reaction of sulfone with alcohol, contingent on base concentration, temperature, and time. Julia-type olefination of alcohols with sulfones was achieved using one equiv. of base, whereas lowering base loading to 0.5 equiv. afforded α-alkylated sulfones. Besides excellent substrate scope and selectivity, biologically active stilbene derivatives DMU-212, pinosylvin, resveratrol, and piceatannol were synthesized in high yield under Julia-type olefination conditions. An extensive array of controlled experiments and DFT calculations provide valuable insight on the reaction pathway.
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Affiliation(s)
- Prabhakar K Pandey
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Moumita Patra
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Prabodh Ranjan
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Nilay Kumar Pal
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Sanjay Choudhary
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Jitendra K Bera
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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2
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Nipate AB, Rao MR. Pd-Catalysed Direct Arylation of Distyrylbenzene: Strong Dual-state Fluorescence and Electrochromism. Chemistry 2024; 30:e202400015. [PMID: 38226834 DOI: 10.1002/chem.202400015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/17/2024]
Abstract
Distyrylbenzenes (DSBs) are well-known for their strong multicolour fluorescence. Fluorescence tuning of DSB via further functionalization/arylation, on the other hand, is uncommon. This paper reports a Pd-catalysed direct arylation approach for introducing different aryl groups onto fluorobenzene-containing DSB moiety (7) in high yields (67-72 %). The versatile methodology allows the substitution of neutral [tolyl (1)], electron-deficient [p-formyl benzene (2), p-acetyl benzene (3), p-nitrobenzene (4)] and electron-rich [carbazole (5), triphenylamine (6)] aryl groups. The electron-deficient aryls render mono-substitution, while the electron-rich counterparts promote di-substitution. The compounds (1-6) show blue, green, and yellow fluorescence in both the solution and solid states; the fluorescence quantum yields reach >98 % and the peak maxima span from 425 to 560 nm. The mono-carbazole DSB (5) exhibit white light emission (WLM) in polar solvents (acetone, DMF, CH3CN, DMSO and NMP) with very high fluorescence quantum yields (φf) of 60-80 %. For WLM, such high efficiency (φf) is somewhat uncommon. Moreover, visible-to-NIR reversible electrochromism is demonstrated by the TPA-integrated DSB (6). The colour of 6 changes from pristine light yellow to orange, and the absorption maxima shifts from 372 to 1500 nm when a positive potential of 1.0 V vs Ag/Ag+ is applied. Moreover, the system shows high colouration efficiency in the NIR region with fast switching speeds for colouration and decolouration as fast as 0.98 s and 1.05 s.
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Affiliation(s)
- Atul B Nipate
- Department of Chemistry, IIT Dharwad, Dharwad, 580011, Karnataka, India
| | - M Rajeswara Rao
- Department of Chemistry, IIT Dharwad, Dharwad, 580011, Karnataka, India
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3
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Sreenivas K, Rao CN, Khan FA. Intramolecular CH-Hydrogen Bonding During the Dissociation of the Oxaphosphetane Intermediate Facilitates Z/E-Selectivity in Wittig Olefination. ChemistryOpen 2024; 13:e202300171. [PMID: 38060831 PMCID: PMC10924042 DOI: 10.1002/open.202300171] [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: 08/22/2023] [Revised: 10/25/2023] [Indexed: 03/10/2024] Open
Abstract
Herein, DFT studies corroborating experimental results revealed that the shortest intramolecular hydrogen bonding distance of cis/trans-oxaphosphetane (OPA) oxygen with the CH-hydrogen of a triphenylphosphine phenyl ring provides good evidence for the attained olefin Z/E-selectivity in Wittig olefination of the studied examples. 2-Nitrobenzaldehyde, 3-nitrobenzaldehyde, 2-nitro-3-bromobenzaldehyde, 2-nitro-5-bromobenzaldehyde and 2-nitro-5-arylbenzaldehydes provided Z-nitrostilbenes with (2-chloro-4-hydroxy-3-methoxy-5-(methoxycarbonyl)benzyl) triphenylphosphonium chloride as the major products. However, 4-nitrobenzaldehyde and 2-nitro-6-bromobenzaldehydes furnished E-nitrostilbenes as the major products in high yields. Furthermore, the DFT computed intramolecular CH1/CH2-hydrogen bond distances with Cl/NO2 of selected stilbene derivatives were in good agreement with intramolecular hydrogen bond distances measured from single-crystal X-ray diffraction measurements.
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Affiliation(s)
- Kukkamudi Sreenivas
- Department of ChemistryIndian Institute of Technology Hyderabad KandiSangareddyTelangana502 285India
| | - Chintada Nageswara Rao
- Department of Drug Discovery and Biomedical Sciences, College of PharmacyUniversity of South CarolinaColumbiaSC-29208USA
| | - Faiz Ahmed Khan
- Department of ChemistryIndian Institute of Technology Hyderabad, KandiSangareddyTelangana502 285India
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4
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Arias A, Costa CE, Moreira MT, Feijoo G, Domingues L. Resveratrol-based biorefinery models for favoring its inclusion along the market value-added chains: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168199. [PMID: 37914108 DOI: 10.1016/j.scitotenv.2023.168199] [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: 09/10/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/03/2023]
Abstract
Resveratrol, a natural organic polyhydroxyphenolic compound, has gained significant attention in the last years given its potential health benefits, including antioxidant, anti-cancer, and anti-inflammatory properties. It can be directly extracted from plants, vegetables, and related products and waste resources, but also chemically/enzymatically/microbially synthesized. However, certain process strategies have some limitations, such as high costs, reduced yield or high energy demand, thus implying significant environmental loads. In this context, the search for more sustainable and circular process schemes is key to the integration of resveratrol into the market value chain of the food, cosmetic and pharmaceutical sectors. The extraction of resveratrol has traditionally been based on conventional methods such as solvent extraction, but advanced green extraction techniques offer more efficient and environmentally friendly alternatives. This review analyses both conventional and green alternative extraction technologies, as well as its bioproduction through microbial fermentation, in terms of production capacity, yield, purity and sustainability. It also presents alternative biorefinery models based on resveratrol bioproduction using by-products and waste streams as resources, specifically considering wine residues, peanut shells and wood bark as input resources, and also following a circular approach. This critical review provides some insight into the opportunities that resveratrol offers for promoting sustainable development and circularity in the related market value chains, and thus provides some criteria for decision making for biorefinery models in which resveratrol is one of the targeted high value-added products. It also identifies the future challenges to promote the inclusion of resveratrol in value chains, with the scale-up of green technologies and its demonstrated economic feasibility being the most prominent.
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Affiliation(s)
- Ana Arias
- CRETUS, Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Carlos E Costa
- CEB - Center of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
| | - Maria Teresa Moreira
- CRETUS, Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Gumersindo Feijoo
- CRETUS, Department of Chemical Engineering, School of Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Lucília Domingues
- CEB - Center of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
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5
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Koranne A, Turakhia S, Jha VK, Gupta S, Ravi R, Mishra A, Aggarwal AK, Jha CK, Dheer N, Jha AK. The Mizoroki-Heck reaction between in situ generated alkenes and aryl halides: cross-coupling route to substituted olefins. RSC Adv 2023; 13:22512-22528. [PMID: 37497097 PMCID: PMC10367967 DOI: 10.1039/d3ra03533f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/18/2023] [Indexed: 07/28/2023] Open
Abstract
This review covers palladium-catalyzed typical Mizoroki-Heck cross-coupling reactions of aryl halides with in situ generated alkenes, by following a typical Heck coupling mechanism to form substituted olefins unlike direct cross-coupling of alkenes with aryl halides in Heck olefination. These reactions solve the issue of alkenes undergoing polymerization at high temperatures and increase reaction efficiency by reducing the reaction time and purification steps.
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Affiliation(s)
- Anushka Koranne
- Govt. Shivnath Science College Rajnandgaon 491441 Chhattisgarh India
| | - Shrishty Turakhia
- Govt. Shivnath Science College Rajnandgaon 491441 Chhattisgarh India
| | | | - Sangeeta Gupta
- Govt. Shivnath Science College Rajnandgaon 491441 Chhattisgarh India
| | | | | | | | | | - Neelu Dheer
- Acharya Narendra Dev College, University of Delhi Delhi India
| | - Abadh Kishor Jha
- Govt. Shivnath Science College Rajnandgaon 491441 Chhattisgarh India
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6
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Synthesis, cytotoxicity, Pan-HDAC inhibitory activity and docking study of new N-(2-aminophenyl)-2-methylquinoline-4-carboxamide and (E)-N-(2-aminophenyl)-2-styrylquinoline-4-carboxamide derivatives as anticancer agents. Med Chem Res 2023. [DOI: 10.1007/s00044-023-03018-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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7
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Yang Y, Spyrou B, White JM, Canty AJ, Donnelly PS, O’Hair RAJ. Palladium-Mediated CO 2 Extrusion Followed by Insertion of Allenes: Translating Mechanistic Studies to Develop a One-Pot Method for the Synthesis of Alkenes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang Yang
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Victoria 3010, Australia
| | - Benjamin Spyrou
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Victoria 3010, Australia
| | - Jonathan M. White
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Victoria 3010, Australia
| | - Allan J. Canty
- School of Physical Sciences─Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Paul S. Donnelly
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Victoria 3010, Australia
| | - Richard A. J. O’Hair
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Victoria 3010, Australia
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8
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Kulkarni AM, Parate S, Lee G, Kim Y, Jung TS, Lee KW, Ha MW. Computational Simulations Highlight the IL2Rα Binding Potential of Polyphenol Stilbenes from Fenugreek. Molecules 2022; 27:molecules27041215. [PMID: 35209009 PMCID: PMC8880457 DOI: 10.3390/molecules27041215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 11/16/2022] Open
Abstract
Widely used in global households, fenugreek is well known for its culinary and medicinal uses. The various reported medicinal properties of fenugreek are by virtue of the different natural phytochemicals present in it. Regarded as a promising target, interleukin 2 receptor subunit alpha (IL2Rα) has been shown to influence immune responses. In the present research, using in silico techniques, we have demonstrated the potential IL2Rα binding properties of three polyphenol stilbenes (desoxyrhaponticin, rhaponticin, rhapontigenin) from fenugreek. As the first step, molecular docking was performed to assess the binding potential of the fenugreek phytochemicals with IL2Rα. All three phytochemicals demonstrated interactions with active site residues. To confirm the reliability of our molecular docking results, 100 ns molecular dynamics simulations studies were undertaken. As discerned by the RMSD and RMSF analyses, IL2Rα in complex with the desoxyrhaponticin, rhaponticin, and rhapontigenin indicated stability. The RMSD analysis of the phytochemicals alone also demonstrated no significant structural changes. Based on the stable molecular interactions and comparatively slightly better MM/PBSA binding free energy, rhaponticin seems promising. Additionally, ADMET analysis performed for the stilbenes indicated that all of them obey the ADMET rules. Our computational study thus supports further in vitro IL2Rα binding studies on these stilbenes, especially rhaponticin.
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Affiliation(s)
- Apoorva M. Kulkarni
- Department of Bio & Medical Big Data (BK4 Program), Division of Life Science, Research Institute of Natural Science (RINS), Gyeongsang National University (GNU), 501 Jinju-daero, Jinju 52828, Korea;
| | - Shraddha Parate
- Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University (GNU), 501 Jinju-daero, Jinju 52828, Korea; (S.P.); (G.L.)
| | - Gihwan Lee
- Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University (GNU), 501 Jinju-daero, Jinju 52828, Korea; (S.P.); (G.L.)
| | - Yongseong Kim
- School of Cosmetics and Food Development, Kyungnam University, Masan 631-701, Korea;
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501 Jinju-daero, Jinju-si 52828, Gyeongsangnam-do, Korea;
| | - Keun Woo Lee
- Department of Bio & Medical Big Data (BK4 Program), Division of Life Science, Research Institute of Natural Science (RINS), Gyeongsang National University (GNU), 501 Jinju-daero, Jinju 52828, Korea;
- Correspondence: (K.W.L.); (M.W.H.)
| | - Min Woo Ha
- Jeju Research Institute of Pharmaceutical Sciences, College of Pharmacy, Jeju National University, 102 Jejudaehak-ro, Jeju 63243, Jeju-do, Korea
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, 102 Jejudaehak-ro, Jeju 63243, Jeju-do, Korea
- Correspondence: (K.W.L.); (M.W.H.)
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9
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Das A, Pandita D, Jain GK, Agarwal P, Grewal AS, Khar RK, Lather V. Role of phytoconstituents in the management of COVID-19. Chem Biol Interact 2021; 341:109449. [PMID: 33798507 PMCID: PMC8008820 DOI: 10.1016/j.cbi.2021.109449] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 03/07/2021] [Accepted: 03/21/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND COVID-19, a severe global pandemic caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has emerged as one of the most threatening transmissible disease. As a great threat to global public health, the development of treatment options has become vital, and a rush to find a cure has mobilized researchers globally from all areas. SCOPE AND APPROACH This review focuses on deciphering the potential of different secondary metabolites from medicinal plants as therapeutic options either as inhibitors of therapeutic targets of SARS-CoV-2 or as blockers of viral particles entry through host cell receptors. The use of medicinal plants containing specific phytomoieties could be seen in providing a safer and long-term solution for the population with lesser side effects. Key Findings and Conclusions: Considering the high cost and time-consuming drug discovery process, therapeutic repositioning of existing drugs was explored as treatment option in COVID-19, however several molecules have been retracted as therapeutics either due to no positive outcomes or the severe side effects. These effects call for exploring the alternate treatment options which are therapeutically effective as well as safe. Keeping this in mind, phytopharmaceuticals derived from medicinal plants could be explored as important resources in the development of COVID-19 treatment, as their role in the past for treatment of viral diseases like HIV, MERS-CoV, and influenza has been well reported. Considering this fact, different phytoconstituents such as flavonoids, alkaloids, tannins and glycosides etc. Possessing antiviral properties against coronaviruses and possessing potential against SARS-CoV-2 have been reviewed in the present work.
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Affiliation(s)
- Amiya Das
- Amity Institute of Molecular Medicine & Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida, 201313, India
| | - Deepti Pandita
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, New Delhi, 110017, India.
| | - Gaurav Kumar Jain
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar, New Delhi, 110017, India
| | - Pallavi Agarwal
- Amity Institute of Molecular Medicine & Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida, 201313, India
| | | | - Roop K. Khar
- BS Anangpuria Institute of Pharmacy, Faridabad, Haryana, India
| | - Viney Lather
- Amity Institute of Pharmacy, Amity University Uttar Pradesh, Sector-125, Noida, 201313, India.
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10
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Niknam E, Mahmoodi A, Panahi F, Heydari Dokoohaki M, Zolghadr AR, Khalafi-Nezhad A. Synthesis of some new distyrylbenzene derivatives using immobilized Pd on an NHC-functionalized MIL-101(Cr) catalyst: photophysical property evaluation, DFT and TD-DFT calculations. RSC Adv 2021; 11:12374-12380. [PMID: 35423731 PMCID: PMC8696979 DOI: 10.1039/d1ra00457c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/22/2021] [Indexed: 12/20/2022] Open
Abstract
In this study the catalytic application of a heterogeneous Pd-catalyst system based on metal organic framework [Pd-NHC-MIL-101(Cr)] was investigated in the synthesis of distyrylbenzene derivatives using the Heck reaction. The Pd-NHC-MIL-101(Cr) catalyst showed high efficiency in the synthesis of these π-conjugated materials and products were obtained in high yields with low Pd-contamination based on ICP analysis. The photophysical behaviors for some of the synthesized distyrylbenzene derivatives were evaluated. The DFT and TD-DFT methods were employed to determine the optimized molecular geometry, band gap energy, and the electronic absorption and emission wavelengths of the new synthesized donor-π-acceptor (D-π-A) molecules in the gas phase and in various solvents using the chemical model B3LYP/6-31+G(d,p) level of theory.
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Affiliation(s)
- Esmaeil Niknam
- Department of Chemistry, College of Sciences, Shiraz University Shiraz 71454 Iran
| | - Ali Mahmoodi
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology Tehran Iran
| | - Farhad Panahi
- Department of Chemistry, College of Sciences, Shiraz University Shiraz 71454 Iran
| | | | - Amin Reza Zolghadr
- Department of Chemistry, College of Sciences, Shiraz University Shiraz 71454 Iran
| | - Ali Khalafi-Nezhad
- Department of Chemistry, College of Sciences, Shiraz University Shiraz 71454 Iran
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11
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Toxicological Evaluation of Piceatannol, Pterostilbene, and ε-Viniferin for Their Potential Use in the Food Industry: A Review. Foods 2021; 10:foods10030592. [PMID: 33799882 PMCID: PMC7998146 DOI: 10.3390/foods10030592] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/02/2021] [Accepted: 03/08/2021] [Indexed: 12/11/2022] Open
Abstract
The application of stilbenes in the food industry is being considered because of their biological activities. Piceatannol, pterostilbene and ε-viniferin have awakened the industry’s interest. However, before they can be commercialized, we must first guarantee their safety for consumers. The present work reviews the toxicological studies performed with these stilbenes. A wide variety of studies has demonstrated their cytotoxic effects in both cancer and non-cancerous cell lines. In contrast, although DNA damage was detected by some authors, in vitro genotoxic studies on the effects of piceatannol, pterostilbene, and ε-viniferin remain scarce. None of the three reviewed substances have been evaluated using the in vitro tests required by the European Food Safety Authority (EFSA) as the first step in genotoxicity testing. We did not find any study on the toxic effects of these stilbenes in vivo. Thus, more studies are needed to confirm their safe use before they can be authorized as additive in the food industry.
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12
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Muriel B, Waser J. Azide Radical Initiated Ring Opening of Cyclopropenes Leading to Alkenyl Nitriles and Polycyclic Aromatic Compounds. Angew Chem Int Ed Engl 2021; 60:4075-4079. [PMID: 33205851 DOI: 10.1002/anie.202013516] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/04/2020] [Indexed: 01/05/2023]
Abstract
We report herein a radical-mediated amination of cyclopropenes. The transformation proceeds through a cleavage of the three-membered ring after the addition of an azide radical on the strained double bond and leads to tetrasubstituted alkenyl nitrile derivatives upon loss of N2 . With 1,2-diaryl substituted cyclopropenes, this methodology could be extended to a one-pot synthesis of highly functionalized polycyclic aromatic compounds (PACs). This transformation allows the synthesis of nitrile-substituted alkenes and aromatic compounds from rapidly accessed cyclopropenes using only commercially available reagents.
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Affiliation(s)
- Bastian Muriel
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306, 1015, Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306, 1015, Lausanne, Switzerland
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13
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Muriel B, Waser J. Azide Radical Initiated Ring Opening of Cyclopropenes Leading to Alkenyl Nitriles and Polycyclic Aromatic Compounds. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013516] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bastian Muriel
- Laboratory of Catalysis and Organic Synthesis Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
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14
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Pecyna P, Wargula J, Murias M, Kucinska M. More Than Resveratrol: New Insights into Stilbene-Based Compounds. Biomolecules 2020; 10:E1111. [PMID: 32726968 PMCID: PMC7465418 DOI: 10.3390/biom10081111] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 02/07/2023] Open
Abstract
The concept of a scaffold concerns many aspects at different steps on the drug development path. In medicinal chemistry, the choice of relevant "drug-likeness" scaffold is a starting point for the design of the structure dedicated to specific molecular targets. For many years, the chemical uniqueness of the stilbene structure has inspired scientists from different fields such as chemistry, biology, pharmacy, and medicine. In this review, we present the outstanding potential of the stilbene-based derivatives. Naturally occurring stilbenes, together with powerful synthetic chemistry possibilities, may offer an excellent approach for discovering new structures and identifying their therapeutic targets. With the development of scientific tools, sophisticated equipment, and a better understanding of the disease pathogenesis at the molecular level, the stilbene scaffold has moved innovation in science. This paper mainly focuses on the stilbene-based compounds beyond resveratrol, which are particularly attractive due to their biological activity. Given the "fresh outlook" about different stilbene-based compounds starting from stilbenoids with particular regard to isorhapontigenin and methoxy- and hydroxyl- analogues, the update about the combretastatins, and the very often overlooked and underestimated benzanilide analogues, we present a new story about this remarkable structure.
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Affiliation(s)
- Paulina Pecyna
- Department of Genetics and Pharmaceutical Microbiology, University of Medical Sciences, Swiecickiego 4 Street, 60-781 Poznan, Poland;
| | - Joanna Wargula
- Department of Organic Chemistry, University of Medical Sciences, Grunwaldzka 6 Street, 60-780 Poznan, Poland;
| | - Marek Murias
- Department of Toxicology, University of Medical Sciences, Dojazd 30 Street, 60-631 Poznan, Poland;
| | - Malgorzata Kucinska
- Department of Toxicology, University of Medical Sciences, Dojazd 30 Street, 60-631 Poznan, Poland;
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Abstract
The concept of a scaffold concerns many aspects at different steps on the drug development path. In medicinal chemistry, the choice of relevant "drug-likeness" scaffold is a starting point for the design of the structure dedicated to specific molecular targets. For many years, the chemical uniqueness of the stilbene structure has inspired scientists from different fields such as chemistry, biology, pharmacy, and medicine. In this review, we present the outstanding potential of the stilbene-based derivatives. Naturally occurring stilbenes, together with powerful synthetic chemistry possibilities, may offer an excellent approach for discovering new structures and identifying their therapeutic targets. With the development of scientific tools, sophisticated equipment, and a better understanding of the disease pathogenesis at the molecular level, the stilbene scaffold has moved innovation in science. This paper mainly focuses on the stilbene-based compounds beyond resveratrol, which are particularly attractive due to their biological activity. Given the "fresh outlook" about different stilbene-based compounds starting from stilbenoids with particular regard to isorhapontigenin and methoxy- and hydroxyl- analogues, the update about the combretastatins, and the very often overlooked and underestimated benzanilide analogues, we present a new story about this remarkable structure.
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Fang Y, Yang C, Yu Z, Li X, Mu Q, Liao G, Yu B. Natural products as LSD1 inhibitors for cancer therapy. Acta Pharm Sin B 2020; 11:S2211-3835(20)30616-X. [PMID: 32837872 PMCID: PMC7305746 DOI: 10.1016/j.apsb.2020.06.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/30/2020] [Accepted: 06/08/2020] [Indexed: 02/07/2023] Open
Abstract
Natural products generally fall into the biologically relevant chemical space and always possess novel biological activities, thus making them a rich source of lead compounds for new drug discovery. With the recent technological advances, natural product-based drug discovery is now reaching a new era. Natural products have also shown promise in epigenetic drug discovery, some of them have advanced into clinical trials or are presently being used in clinic. The histone lysine specific demethylase 1 (LSD1), an important class of histone demethylases, has fundamental roles in the development of various pathological conditions. Targeting LSD1 has been recognized as a promising therapeutic option for cancer treatment. Notably, some natural products with different chemotypes including protoberberine alkaloids, flavones, polyphenols, and cyclic peptides have shown effectiveness against LSD1. These natural products provide novel scaffolds for developing new LSD1 inhibitors. In this review, we mainly discuss the identification of natural LSD1 inhibitors, analysis of the co-crystal structures of LSD1/natural product complex, antitumor activity and their modes of action. We also briefly discuss the challenges faced in this field. We believe this review will provide a landscape of natural LSD1 inhibitors.
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Key Words
- AML, acute myeloid leukemia
- CCC, cut countercurrent chromatography
- CD11b, integrin alpha M
- CD14, cluster of differentiation 14
- CD86, cluster of differentiation 86
- COVID-19, coronavirus disease
- Cancer therapy
- CoREST, RE1-silencing transcription factor co-repressor
- Drug discovery
- EMT, epithelial–mesenchymal transition
- EVOO, extra virgin olive oil
- EdU, 5-ethynyl-20-deoxyuridine
- Epigenetic regulation
- FAD, flavin adenine dinucleotide
- FDA, U.S. Food and Drug Administration
- GGA, geranylgeranoic acid
- H3K4, histone H3 lysine 4
- H3K9, histone H3 lysine 9
- HDAC, histone deacetylase
- HRP, horseradish peroxidase
- Histone demethylase
- Kt, competitive inhibition constant
- LSD1 inhibitors
- LSD1, lysine-specific histone demethylase 1A
- MAO-A, monoamine oxidase A
- MHC, myosin heavy chain
- MMA, methylmalonic acid
- NAD, nicotinamide adenine dinucleotide
- NTRK2, neurotrophic receptor tyrosine kinase 2
- Natural products
- PDX, patient-derived xenograft
- SARS-CoV-2, severe acute respiratory syndrome coronavirus 2
- SARs, structure–activity relationship studies
- SIRT1, sirtuin 1
- SOX2, sex determining region Y-box 2
- SPR, surface plasmon resonance
- TCP, tranylcypromine
- THF, tetrahydrofolate
- Tm, melting temperature
- iPS, induced pluripotent stem
- mRNA, messenger RNA
- siRNA, small interfering RNA
- ΔΨm, mitochondrial transmembrane potential
- α-MG, α-mangostin
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Affiliation(s)
- Yuan Fang
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Chao Yang
- Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan 316022, China
| | - Zhiqiang Yu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xiaochuan Li
- The People's Hospital of Gaozhou, Gaozhou 525200, China
| | - Qingchun Mu
- The People's Hospital of Gaozhou, Gaozhou 525200, China
| | - Guochao Liao
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Bin Yu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
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Mehdipour M, Dehghan G, Yekta R, Hanifeh Ahagh M, Mahdavi M, Ghasemi Z, Fathi Z. DNA-binding affinity, cytotoxicity, apoptosis, cell cycle inhibition and molecular docking studies of a new stilbene derivative. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2019; 38:101-118. [PMID: 30931800 DOI: 10.1080/15257770.2018.1498517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Stilbene derivatives have been found to possess promising anticancer activities against human cancer cell lines in vitro. In the present study, we have investigated cytotoxic, apoptosis induction and DNA binding activity of new stilbene derivative, (E)-1-(4-Chlorophenyl)-4,5-diphenyl-2-[4-(4-methoxystryl)phenyl]-1H-imidazol (STIM) on K562 chronic myeloid leukemia cell line. Via MTT assay STIM demonstrated cytotoxic activity against K562 cell line with IC50 value of 150 µM. Apoptosis, as the mechanism of cell death, was evaluated by morphological study and flow cytometric analysis. In vitro DNA binding property of STIM has been studied by vital spectroscopic techniques, which indicated that STIM interact with ctDNA through groove binding mode and binding constant (Kb) was estimated to be 6.9 × 104 M-1. Docking studies revealed that hydrophobic is the most important interaction in STIM-DNA complex, and that the ligand (STIM) interacts with DNA via groove binding mode and the bindiyspng energy was calculated as -13.37 kcal/mol. Taken together, the present study suggests that STIM exhibits anticancer effect on K562 cell line through the induction of apoptosis as well as cell cycle arrest at Sub-G1 phase and also can bind to double helix DNA in vitro.
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Affiliation(s)
- Maryam Mehdipour
- a Department of Biology, Faculty of Natural Science s, University of Tabriz , Tabriz , Iran
| | - Gholamreza Dehghan
- a Department of Biology, Faculty of Natural Science s, University of Tabriz , Tabriz , Iran
| | - Reza Yekta
- a Department of Biology, Faculty of Natural Science s, University of Tabriz , Tabriz , Iran
| | - Mina Hanifeh Ahagh
- a Department of Biology, Faculty of Natural Science s, University of Tabriz , Tabriz , Iran
| | - Majid Mahdavi
- a Department of Biology, Faculty of Natural Science s, University of Tabriz , Tabriz , Iran
| | - Zarrin Ghasemi
- b Department of Organic Chemistry and Biochemistry, Faculty of Chemistry , University of Tabriz , Tabriz , Iran
| | - Zahra Fathi
- b Department of Organic Chemistry and Biochemistry, Faculty of Chemistry , University of Tabriz , Tabriz , Iran
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