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Chutia K, Sarmah M, Gogoi P. Substituted Isocoumarins: An Assemble of Synthetic Strategies Towards 3-Substituted and 3,4-Disubstituted Isocoumarins. Chem Asian J 2023; 18:e202201240. [PMID: 36647281 DOI: 10.1002/asia.202201240] [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: 12/12/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/18/2023]
Abstract
The versatility of isocoumarin frameworks offers the privilege to access many pharmacological targets. This unique heterocycle core present in many natural products and complex organic molecules contribute to medicinal chemistry as anti-cancer, anti-inflammatory and immunomodulatory agents. The attractive properties exhibited by its analogues urged the scientists to explore their synthetic analogues. In regard to the myriads of synthetic methodologies, we have compiled a review update covering all the articles that have been published towards the synthesis of 3-substituted and 3,4-disubstituted isocoumarins. Additionally, we have also highlighted a systematic survey of catalytic methods for their synthesis along with their scope towards diverse functionalizations and plausible mechanistic aspects.
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Affiliation(s)
- Kangkana Chutia
- Applied Organic Chemistry Group, Chemical Science and Technology Division CSIR-North East Institute of Science and Technology, NH 37, Pulibor, Jorhat, Assam, 785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., 201002, India
| | - Manashi Sarmah
- Applied Organic Chemistry Group, Chemical Science and Technology Division CSIR-North East Institute of Science and Technology, NH 37, Pulibor, Jorhat, Assam, 785006, India
| | - Pranjal Gogoi
- Applied Organic Chemistry Group, Chemical Science and Technology Division CSIR-North East Institute of Science and Technology, NH 37, Pulibor, Jorhat, Assam, 785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., 201002, India
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Xu L, Liu X, Alvey GR, Shatskiy A, Liu JQ, Kärkäs MD, Wang XS. Silver-Catalyzed Controlled Intermolecular Cross-Coupling of Silyl Enol Ethers: Scalable Access to 1,4-Diketones. Org Lett 2022; 24:4513-4518. [PMID: 35713416 PMCID: PMC9536665 DOI: 10.1021/acs.orglett.2c01477] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
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A protocol
for silver-catalyzed controlled intermolecular cross-coupling
of silyl enolates is disclosed. The protocol displays good functional
group tolerance and allows efficient preparation of a series of synthetically
useful 1,4-diketones. Preliminary mechanistic investigations suggest
that the reaction proceeds through a one-electron process involving
free radical species in which PhBr acts as the oxidant.
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Affiliation(s)
- Li Xu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Xiaoyi Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Gregory R Alvey
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.,Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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Orfali R, Perveen S, AlAjmI MF, Ghaffar S, Rehman MT, AlanzI AR, Gamea SB, Essa Khwayri M. Antimicrobial Activity of Dihydroisocoumarin Isolated from Wadi Lajab Sediment-Derived Fungus Penicillium chrysogenum: In Vitro and In Silico Study. Molecules 2022; 27:molecules27113630. [PMID: 35684566 PMCID: PMC9182410 DOI: 10.3390/molecules27113630] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023] Open
Abstract
Antibiotic resistance is considered a major health concern globally. It is a fact that the clinical need for new antibiotics was not achieved until now. One of the most commonly prescribed classes of antibiotics is β-Lactam antibiotics. However, most bacteria have developed resistance against β-Lactams by producing enzymes β-Lactamase or penicillinase. The discovery of new β-Lactamase inhibitors as new antibiotics or antibiotic adjuvants is essential to avoid future catastrophic pandemics. In this study, five dihydroisocoumarin: 6-methoxy mellein (1); 5,6-dihydroxymellein (2); 6-hydroxymellein (3); 4-chloro-6-hydroxymellein (4) and 4-chloro-5,6-di-hydroxymellein (5) were isolated from Wadi Lajab sediment-derived fungus Penicillium chrysogenum, located 15 km northwest of Jazan, KSA. The elucidation of the chemical structures of the isolated compounds was performed by analysis of their NMR, MS. Compounds 1–5 were tested for antibacterial activities against Gram-positive and Gram-negative bacteria. All of the compounds exhibited selective antibacterial activity against Gram-positive bacteria Staphylococcus aureus and Bacillus licheniformis except compound 3. The chloro-dihydroisocoumarin derivative, compound 4, showed potential antimicrobial activities against all of the tested strains with the MIC value between 0.8–5.3 μg/mL followed by compound 5, which exhibited a moderate inhibitory effect. Molecular docking data showed good affinity with the isolated compounds to β-Lactamase enzymes of bacteria; NDM-1, CTX-M, OXA-48. This work provides an effective strategy for compounds to inhibit bacterial growth or overcome bacterial resistance.
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Affiliation(s)
- Raha Orfali
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (M.F.A.); (S.G.); (M.T.R.); (A.R.A.); (S.B.G.); (M.E.K.)
- Correspondence: (R.O.); or (S.P.)
| | - Shagufta Perveen
- Department of Chemistry, School of Computer, Mathematical and Natural Sciences, Morgan State University, Baltimore, MD 21251, USA
- Correspondence: (R.O.); or (S.P.)
| | - Mohamed Fahad AlAjmI
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (M.F.A.); (S.G.); (M.T.R.); (A.R.A.); (S.B.G.); (M.E.K.)
| | - Safina Ghaffar
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (M.F.A.); (S.G.); (M.T.R.); (A.R.A.); (S.B.G.); (M.E.K.)
| | - Md Tabish Rehman
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (M.F.A.); (S.G.); (M.T.R.); (A.R.A.); (S.B.G.); (M.E.K.)
| | - Abdullah R. AlanzI
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (M.F.A.); (S.G.); (M.T.R.); (A.R.A.); (S.B.G.); (M.E.K.)
| | - Saja Bane Gamea
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (M.F.A.); (S.G.); (M.T.R.); (A.R.A.); (S.B.G.); (M.E.K.)
| | - Mona Essa Khwayri
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (M.F.A.); (S.G.); (M.T.R.); (A.R.A.); (S.B.G.); (M.E.K.)
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