1
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Dapkekar AB, Satyanarayana G. Electrochemically driven regioselective construction of 4-sulfenyl-isochromenones from o-alkynylbenzoates and diaryl disulfides. Org Biomol Chem 2024. [PMID: 39140309 DOI: 10.1039/d4ob01137f] [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
Herein, we report a convenient and environmentally friendly electrochemical technique that enables the regioselective construction of 4-sulfenyl-1H-isochromen-1-ones using readily available precursors such as o-alkynyl benzoates and diaryl disulfides. This electrochemical process has been accomplished through constant current electrolysis in an undivided cell under external acid, catalyst, oxidant, or metal-free conditions. Owing to this protocol's mild reaction conditions, the products are obtained in good to very good yields, demonstrating a broad substrate scope and functional group tolerance.
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Affiliation(s)
- Anil Balajirao Dapkekar
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502284, India.
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502284, India.
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2
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Tan JB, Peng WW, Li MF, Kang FH, Zheng YT, Xu L, Qin SY, Huang YT, Zou ZX. Three new metabolites from the endophyte Fusarium proliferatum T2-10. Nat Prod Res 2023:1-11. [PMID: 37933750 DOI: 10.1080/14786419.2023.2278158] [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: 06/19/2023] [Accepted: 10/23/2023] [Indexed: 11/08/2023]
Abstract
One new cyclopeptide, cyclo-(L-Trp-L-Phe-L-Phe) (1), one new 2-pyridone derivative, fusarone A (3), and one new natural indole derivative, ethyl 3-indoleacetate (4), along with six known compounds were isolated from the endophytic fungus Fusarium proliferatum T2-10. The planar structures of three new compounds were identified by spectral methods including 1D and 2D NMR techniques, and the absolute configuration of compound 1 was elucidated by Marfey-MS method. In addition, all compounds were evaluated for their cytotoxic and antibacterial activities in vitro. Compound 2 showed remarkable cytotoxic activities against two human hepatoma cell lines SMMC7721 and HepG2 with IC50 values of 5.89 ± 0.74 and 6.16 ± 0.52 μM, and showed moderate antibacterial activities against Staphylococcus aureus and Enterococcus faecalis with MIC values of 7.81 and 15.62 μg/mL, respectively.
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Affiliation(s)
- Jian-Bing Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P. R. China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P. R. China
| | - Wei-Wei Peng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P. R. China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P. R. China
| | - Mei-Fang Li
- Affiliated Haikou Hospital of Xiangya School of Medicine, Central South University, Haikou, P. R. China
| | - Feng-Hua Kang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P. R. China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P. R. China
| | - Yu-Ting Zheng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P. R. China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P. R. China
| | - Li Xu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P. R. China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P. R. China
| | - Si-Yu Qin
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P. R. China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P. R. China
| | - Yuan-Tao Huang
- Affiliated Haikou Hospital of Xiangya School of Medicine, Central South University, Haikou, P. R. China
| | - Zhen-Xing Zou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P. R. China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P. R. China
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3
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Balakrishnan MH, Sureshbabu P, Korivi R, Mannathan S. Regioselective Synthesis of 3-Substituted Isocoumarin-1-imines via Palladium-Catalyzed Denitrogenative Transannulation of 1,2,3-Benzotriazin-4(3H)-ones and Terminal Alkynes. Chem Asian J 2023; 18:e202300726. [PMID: 37711073 DOI: 10.1002/asia.202300726] [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: 08/19/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/16/2023]
Abstract
A palladium-catalyzed denitrogenative transannulation strategy to access various 3-substituted isocoumarin-1-imine frameworks using 1,2,3-benzotriazin-4(3H)-ones and terminal alkynes is described. The reaction is highly regioselective and tolerates a wide range of functional groups. The reaction is believed to proceed via a five-membered palladacycle intermediate extruding environmentally benign molecular nitrogen as a by-product. The utility of this method was showcased through the one-pot synthesis of biologically relevant 3-substituted isocoumarin scaffolds.
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Affiliation(s)
- Madasamy Hari Balakrishnan
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Popuri Sureshbabu
- Department of Chemistry, SRM University AP, Amaravati, Andhra Pradesh, 522502, India
| | - Ramaraju Korivi
- Department of Chemistry, SRM University AP, Amaravati, Andhra Pradesh, 522502, India
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4
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Saha A, Ramesh E, Sahoo A. Brønsted Acid Promoted Sulfenylacyloxylation of Alkynes: Access to 4‐Sulfenylisocoumarins. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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5
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Mishra P, Panda N. Total Synthesis of AGI‐7 and Sescandelin from Enol Esters. ChemistrySelect 2022. [DOI: 10.1002/slct.202201791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Priyadarshini Mishra
- Department of Chemistry National Institute of Technology, Rourkela Odisha India- 769008
| | - Niranjan Panda
- Department of Chemistry National Institute of Technology, Rourkela Odisha India- 769008
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6
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El Qami A, Jismy B, Akssira M, Jacquemin J, Tikad A, Abarbri M. A Ag 2CO 3/TFA-catalyzed intramolecular annulation approach to imidazo[1,2- c][1,3]oxazin-5-one derivatives. Org Biomol Chem 2022; 20:1518-1531. [PMID: 35112683 DOI: 10.1039/d1ob02352g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of 2,7-disubstituted 3-methylimidazo[1,2-c][1,3]oxazin-5-ones were synthesized in good yields via Ag2CO3/TFA-mediated intramolecular annulation of N-Boc-2-alkynyl-4-bromo(alkynyl)-5-methylimidazoles. This methodology was carried out in the presence of a catalytic amount of silver carbonate and trifluoroacetic acid in dichloroethane at 60 °C. In all experiments, only the six-membered ring product was obtained since the possible five-membered compound was not observed, proving the high regioselectivity of this approach. A complementary computational study was performed in order to rationalize the mechanism of 6-endo-dig heterocycle formation. In addition, 2-bromo-3-methyl-7-phenylimidazo[1,2-c][1,3]oxazin-5-one was used as a building block to synthesize a small library of new 2-substituted imidazo[1,2-c][1,3]oxazin-5-one derivatives through the Suzuki, Sonogashira and Heck cross coupling reactions.
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Affiliation(s)
- Abdelkarim El Qami
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E), EA 6299, Université de Tours, Faculté des Sciences et Techniques, Avenue Monge Faculté des Sciences, Parc de Grandmont, 37200 Tours, France. .,Laboratoire de Chimie Physique et de Chimie Bioorganique, URAC 22. Université Hassan II de Casablanca, Faculté des Sciences et Techniques de Mohammedia, B.P. 146, 28800 Mohammedia, Morocco
| | - Badr Jismy
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E), EA 6299, Université de Tours, Faculté des Sciences et Techniques, Avenue Monge Faculté des Sciences, Parc de Grandmont, 37200 Tours, France.
| | - Mohamed Akssira
- Laboratoire de Chimie Physique et de Chimie Bioorganique, URAC 22. Université Hassan II de Casablanca, Faculté des Sciences et Techniques de Mohammedia, B.P. 146, 28800 Mohammedia, Morocco
| | - Johan Jacquemin
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E), EA 6299, Université de Tours, Faculté des Sciences et Techniques, Avenue Monge Faculté des Sciences, Parc de Grandmont, 37200 Tours, France.
| | - Abdellatif Tikad
- Laboratoire de Chimie Moléculaire et Substances Naturelles. Université Moulay Ismail, Faculté des Sciences, B.P. 11201, Zitoune, Meknès, Morocco
| | - Mohamed Abarbri
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E), EA 6299, Université de Tours, Faculté des Sciences et Techniques, Avenue Monge Faculté des Sciences, Parc de Grandmont, 37200 Tours, France.
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7
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Shyamlal BRK, Mathur M, Yadav DK, Mashevskaya IV, El-Shazly M, Saleh N, Chaudhary S. Discovery of Natural Product Inspired 3-Phenyl-1H-isochromen-1-ones as Highly Potent Antioxidant and Antiplatelet Agents: Design, Synthesis, Biological Evaluation, SAR and in silico Studies. Curr Pharm Des 2021; 28:829-840. [PMID: 34784855 DOI: 10.2174/1381612827666211116102031] [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: 05/17/2021] [Accepted: 10/22/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Several natural/synthetic molecules having structure similar to 1H-isochromen-1-ones have been reported to display promising antioxidants and platelet aggregation inhibitory activity. Isocoumarin (1H-2-benzopyran-1-one) skeleton, either whole or as a part of molecular framework, have been explored for their antioxidant or antiplatelet activities. INTRODUCTION Based on literature, a new prototype i.e., 3-phenyl-1H-isochromen-1-ones based compounds have been rationalized to possess both antioxidant as well as antiplatelet activities. Consequently, no reports are available regarding its inhibition either by cyclooxygenase-1 (COX-1) enzyme or by arachidonic acid (AA)-induced platelet aggregation. This prompted us to investigate 3-phenyl-1H-isochromen-1-ones towards antioxidant and antiplatelet agents. METHODS The goal of this work to identify new 3-phenyl-1H-isochromen-1-ones based compounds via synthesis of a series of analogues and performing in vitro antioxidant as well as AA-induced antiplatelet activities and then, identification of potent compounds by SAR and molecular docking studies. RESULTS Out of all synthesized 3-phenyl-1H-isochromen-1-ones analogues, five compounds showed 7-folds to 16-folds highly potent antioxidant activities than ascorbic acid. Altogether, ten 3-phenyl-1H-isochromen-1-one analogues displayed antioxidant activities in 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. Almost, all the 3-phenyl-1H-isochromen-1-one analogues exhibited potent AA-induced antiplatelet activity; few of them displayed 7-folds more activity as compared to aspirin. Further, in silico analysis validated the wet results. CONCLUSION We disclose the first detailed study for the identification of 3-phenyl-1H-isochromen-1-one analogues as highly potent antioxidant as well as antiplatelet agents. The article describes the scaffold designing, synthesis, bioevaluation, structure-activity relationship and in silico studies of pharmaceutically privileged bioactive 3-phenyl-1H-isochromen-1-one class of heterocycles.
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Affiliation(s)
- Bharti Rajesh Kumar Shyamlal
- Laboratory of Organic and Medicinal Chemistry (OMC Lab), Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jawaharlal Nehru Marg, Jaipur-302017. India
| | - Manas Mathur
- School of Agriculture, Suresh Gyan Vihar University, Mahal Road, Jagatpura, Jaipur-302017. India
| | - Dharmendra K Yadav
- Gachon Institute of Pharmaceutical Sciences and Department of Pharmacy, College of Pharmacy, Gachon University of Medicine and Science, Incheon, 21936. South Korea
| | - Irina V Mashevskaya
- Department of Organic Chemistry, Faculty of Chemistry, Perm State University, Bukireva Street, Perm 614990. Russian Federation
| | - Mohamed El-Shazly
- Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, The German University in Cairo, Cairo. Egypt
| | - Na'il Saleh
- Department of Chemistry, College of Science, United Arab Emirates (UAE) University, P.O. Box 15551, Al Ain. United Arab Emirates
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry (OMC Lab), Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jawaharlal Nehru Marg, Jaipur-302017. India
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8
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Marandi A, Nasiri E, Koukabi N, Seidi F. The Fe 3O 4@apple seed starch core-shell structure decorated In(III): A green biocatalyst for the one-pot multicomponent synthesis of pyrazole-fused isocoumarins derivatives under solvent-free conditions. Int J Biol Macromol 2021; 190:61-71. [PMID: 34411618 DOI: 10.1016/j.ijbiomac.2021.08.085] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/24/2021] [Accepted: 08/10/2021] [Indexed: 01/15/2023]
Abstract
In current decades, the fabrication and design of magnetic biocatalysts have been advancing as green catalysts. Hence, in this paper, we use the apple seed starch to create indium(III) immobilized on Fe3O4@apple seed starch core-shell magnetic nanocatalyst (Fe3O4@apple seed starch-In(III)). The prepared catalyst was identified and evaluated with several analysis techniques. The application of this catalyst in the synthesis of isochromeno[4,3-c]pyrazole-5(1H)-one derivates under solvent-free conditions was a new approach with high efficiency. Due to the magnetic nature of the catalyst, the catalyst separation from the reaction medium is easy, and it is reusable for five runs without significant change in catalytic activity. The fabrication of this catalyst is based on green chemistry principles and is more economical and stable than other catalysts in the synthesis of pyrazole-fused isocoumarins heterocyclic compounds.
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Affiliation(s)
- Alireza Marandi
- Department of Chemistry, Semnan University, Semnan 35351-19111, Iran
| | - Erfan Nasiri
- Department of Chemistry, Semnan University, Semnan 35351-19111, Iran
| | - Nadiya Koukabi
- Department of Chemistry, Semnan University, Semnan 35351-19111, Iran.
| | - Farzad Seidi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
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9
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Quang TH, Phong NV, Hanh TTH, Cuong NX, Ngan NTT, Oh H, Nam NH, Van Minh C. Cytotoxic and immunomodulatory phenol derivatives from a marine sponge-derived fungus Ascomycota sp. VK12. Nat Prod Res 2020; 35:5153-5159. [DOI: 10.1080/14786419.2020.1786829] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Tran Hong Quang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Viet Phong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Thi Hong Hanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Thi Thanh Ngan
- Institute of Genome Research, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Chau Van Minh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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10
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Santhi J, Baire B. An Unusual Conversion of 2‐(Alkynonyl)Alkynylbenzenes to Isocoumarins by a Retro‐Favorskii‐like Degradation. Chem Asian J 2019; 14:3161-3165. [DOI: 10.1002/asia.201900745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/23/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Jampani Santhi
- Department of ChemistryIndian Institute of Technology Madras Chennai Tamilnadu 600036 India
| | - Beeraiah Baire
- Department of ChemistryIndian Institute of Technology Madras Chennai Tamilnadu 600036 India
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11
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Zhang X, Wan X, Cong Y, Zhen X, Li Q, Zhang-Negrerie D, Du Y, Zhao K. Lactonization of 2-Alkynylbenzoates for the Assembly of Isochromenones Mediated by BF 3·Et 2O. J Org Chem 2019; 84:10402-10411. [PMID: 31328911 DOI: 10.1021/acs.joc.9b01601] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A general and efficient lactonization method of readily available 2-alkynylbenzoates affording biologically important isochromenones has been realized via a solely BF3·Et2O-mediated 6-endo-dig cyclization process under mild conditions. An alternative mechanistic pathway in which BF3·Et2O activates the carbonyl of the ester moiety, rather than the alkyne triple bond, was postulated on the basis of control experiment results. Gram-scale reaction and further application for the assembly of more complex molecules demonstrated the practicability of the protocol.
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Affiliation(s)
- Xiang Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Xintong Wan
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Ying Cong
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Xiaohua Zhen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Qiao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
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12
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Xing L, Zhang Y, Li B, Du Y. Synthesis of 4-Chloroisocoumarins via Intramolecular Halolactonization of o-Alkynylbenzoates: PhICl2-Mediated C–O/C–Cl Bond Formation. Org Lett 2019; 21:1989-1993. [DOI: 10.1021/acs.orglett.9b00047] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Linlin Xing
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yong Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Bing Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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13
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Oligosaccharide Assisted Approach: An Efficient and Facile Access to Isochromeno [4,3-b] Indoles Derivatives in the Presence of Beta Cyclodextrin. Catal Letters 2018. [DOI: 10.1007/s10562-018-2592-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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Kita Y, Yata T, Nishimoto Y, Chiba K, Yasuda M. Selective oxymetalation of terminal alkynes via 6- endo cyclization: mechanistic investigation and application to the efficient synthesis of 4-substituted isocoumarins. Chem Sci 2018; 9:6041-6052. [PMID: 30079217 PMCID: PMC6053900 DOI: 10.1039/c8sc01537f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/13/2018] [Indexed: 01/05/2023] Open
Abstract
The cyclization of heteroatom-containing alkynes with π acidic metal salts is an attractive method to prepare heterocycles because the starting materials are readily available and the organometallic compounds are useful synthetic intermediates. A new organometallic species in the heterocyclization provides an opportunity to synthesize heterocycles that are difficult to obtain. Herein, we describe a novel cyclic oxymetalation of 2-alkynylbenzoate with indium or gallium salts that proceeds with an unusual regioselectivity to give isocoumarins bearing a carbon-metal bond at the 4-position. This new type of metalated isocoumarin provided 3-unsubstituted isocoumarins that have seldom been investigated despite their important pharmacological properties. Indium and gallium salts showed high performance in the selective 6-endo cyclization of terminal alkynes while boron or other metals such as Al, Au, and Ag caused 5-exo cyclization or decomposition of terminal alkynes, respectively. The metalated isocoumarin and its reaction intermediate were unambiguously identified by X-ray crystallographic analysis. The theoretical calculation of potential energy profiles showed that oxyindation could proceed via 6-endo cyclization under thermodynamic control while previously reported oxyboration would give a 5-membered ring under kinetic control. The investigation of electrostatic potential maps suggested that the differences in the atomic characters of indium, boron and their ligands would contribute to such a regioselective switch. The metalated isocoumarins were applied to organic synthetic reactions. The halogenation of metalated isocoumarins proceeded to afford 4-halogenated isocoumarins bearing various functional groups. The palladium-catalyzed cross coupling of organometallic species with organic halides gave various 4-substituted isocoumarins. A formal total synthesis of oosponol, which exhibits strong antifungal activity, was accomplished.
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Affiliation(s)
- Yuji Kita
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Tetsuji Yata
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Yoshihiro Nishimoto
- Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE) , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Kouji Chiba
- Material Science Division , MOLSIS Inc. , 1-28-38 Shinkawa, Chuo-ku , Tokyo 104-0033 , Japan
| | - Makoto Yasuda
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
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15
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Song RY, Wang XB, Yin GP, Liu RH, Kong LY, Yang MH. Isocoumarin derivatives from the endophytic fungus, Pestalotiopsis sp. Fitoterapia 2017; 122:115-118. [DOI: 10.1016/j.fitote.2017.08.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/19/2017] [Accepted: 08/21/2017] [Indexed: 10/19/2022]
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16
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Yadav VB, Rai P, Sagir H, Kumar A, Siddiqui IR. Catalyst-Free Synthesis for Pyrazole-Fused Isocoumarins in Recyclable and Biodegradable Reaction Medium. ChemistrySelect 2017. [DOI: 10.1002/slct.201700976] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Vijay B. Yadav
- Laboratory of Green Synthesis; Department of Chemistry; University of Allahabad; Allahabad- 211002 India
| | - Pragati Rai
- Laboratory of Green Synthesis; Department of Chemistry; University of Allahabad; Allahabad- 211002 India
| | - Hozeyfa Sagir
- Laboratory of Green Synthesis; Department of Chemistry; University of Allahabad; Allahabad- 211002 India
| | - Akhilesh Kumar
- Laboratory of Green Synthesis; Department of Chemistry; University of Allahabad; Allahabad- 211002 India
| | - Ibadur R. Siddiqui
- Laboratory of Green Synthesis; Department of Chemistry; University of Allahabad; Allahabad- 211002 India
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17
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Zhu Y, Shen Z. Copper-Catalyzed Acyloxycyanation of Alkynes with Acetonitrile: Regioselective Construction of Cyclic Acrylonitriles by 6-endo
or 5-exo
Cyclization. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700577] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yamin Zhu
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Zengming Shen
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People's Republic of China
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18
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Saeed A, Haroon M, Muhammad F, Larik FA, Hesham ES, Channar PA. Advances in transition-metal-catalyzed synthesis of 3-substituted isocoumarins. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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19
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20
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A new and efficient synthesis of pyrazole-fused isocoumarins on the solid surface of magnetically separable Fe 3 O 4 @SiO 2 -SO 3 H nanoparticles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Praveen C, Ananth DB. Design, synthesis and cytotoxicity of pyrano[4,3-b]indol-1(5H)-ones: A hybrid pharmacophore approach via gold catalyzed cyclization. Bioorg Med Chem Lett 2016; 26:2507-2512. [DOI: 10.1016/j.bmcl.2016.03.087] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 03/16/2016] [Accepted: 03/25/2016] [Indexed: 01/29/2023]
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22
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Isocoumarins, miraculous natural products blessed with diverse pharmacological activities. Eur J Med Chem 2016; 116:290-317. [PMID: 27155563 DOI: 10.1016/j.ejmech.2016.03.025] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 03/08/2016] [Accepted: 03/10/2016] [Indexed: 12/17/2022]
Abstract
Isocoumarins are lactonic natural products abundant in microbes and higher plants. These are considered an amazing scaffold consecrated with more or less all types of pharmacological applications. This review is complementary to the earlier reviews and aims to focus the overlooked aspects of their fascinating chemistry with special emphasis on their classification and diverse biological activities with some SAR conclusions. The most recent available literature on the structural diversity and biological activity of these natural products has been reviewed.
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Panda N, Mishra P, Mattan I. Synthesis of Isocoumarins via Silver(I)-Mediated Annulation of Enol Esters. J Org Chem 2016; 81:1047-56. [DOI: 10.1021/acs.joc.5b02602] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Niranjan Panda
- Department of Chemistry, National Institute of Technology Rourkela, Rourkela-769008, Odisha, India
| | - Priyadarshini Mishra
- Department of Chemistry, National Institute of Technology Rourkela, Rourkela-769008, Odisha, India
| | - Irshad Mattan
- Department of Chemistry, National Institute of Technology Rourkela, Rourkela-769008, Odisha, India
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25
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Gornostaev LM, Khalyavina YG, Kuznetsova AS, Fominykh OI, Tropina DA, Murashova EV, Zamilatskov IA, Chernyshev VV. Synthesis of 13-alkylbenzo[f]isochromeno[4,3-b]indole-5,7,12(13H)-triones by reaction of 2-alkylamino-1,4-naphthoquinones with ninhydrin. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428016010152] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Chen T, Yeung YY. Trifluoroacetic acid catalyzed highly regioselective bromocyclization of styrene-type carboxylic acid. Org Biomol Chem 2016; 14:4571-5. [DOI: 10.1039/c6ob00756b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A trifluoroacetic acid catalyzed highly 6-endo regioselective bromocyclization of styrene-type carboxylic acid has been developed.
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Affiliation(s)
- Tao Chen
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Ying-Yeung Yeung
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
- Department of Chemistry
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27
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Nishiyama Y, Umeda R, Yoshikawa S, Yamashita K. Synthesis of Isocoumarins: Rhenium Complex-Catalyzed Cyclization of 2-Ethynylbenzoic Acids. HETEROCYCLES 2015. [DOI: 10.3987/com-15-13311] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Dasaradhan C, Suneel Kumar Y, Nawaz Khan FR, Jeong ED, Chung EH. Efficient copper-free Pd(OAc)2/Ruphos-catalyzed Sonogashira coupling in the preparation of 3′-hydroxycorfin and gymnopalynes A analogues. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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29
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Pathak S, Das D, Kundu A, Maity S, Guchhait N, Pramanik A. Synthesis of 4-hydroxyindole fused isocoumarin derivatives and their fluorescence “Turn-off” sensing of Cu(ii) and Fe(iii) ions. RSC Adv 2015. [DOI: 10.1039/c5ra01060h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and efficient protocol has been developed for the synthesis of 4-hydroxyindole fused isocoumarins from easily available starting materials.
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Affiliation(s)
- Sudipta Pathak
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Doyel Das
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Ashis Kundu
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Subhendu Maity
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Nikhil Guchhait
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Animesh Pramanik
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
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30
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Zhao FJ, Sun MY, Dang YJ, Meng XY, Jiang B, Hao WJ, Tu SJ. Domino bicyclization of 2,2-dihydroxyindene-1,3-dione with cyclic enaminones leading to isochromeno[4,3-b]indoles. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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31
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Waseem MA, Shireen, Abumahdi AA, Srivastava A, Srivastava A, Rahila, Siddiqui I. [bmIm]OH catalyzed hetero-cyclisation of o-halobenzoic acid and alkyne: A green approach to synthesize isocoumarins. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2014.06.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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32
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Yoo WJ, Nguyen TVQ, Kobayashi S. Synthesis of Isocoumarins through Three-Component Couplings of Arynes, Terminal Alkynes, and Carbon Dioxide Catalyzed by an NHC-Copper Complex. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404692] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Yoo WJ, Nguyen TVQ, Kobayashi S. Synthesis of Isocoumarins through Three-Component Couplings of Arynes, Terminal Alkynes, and Carbon Dioxide Catalyzed by an NHC-Copper Complex. Angew Chem Int Ed Engl 2014; 53:10213-7. [DOI: 10.1002/anie.201404692] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/21/2014] [Indexed: 11/06/2022]
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34
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Sun MY, Meng XY, Zhao FJ, Dang YJ, Jiang F, Liu K, Wang CS, Jiang B, Tu SJ. Efficient Domino Synthesis of Pyrrole-Fused Isocoumarins with Microwave Heating. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402164] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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35
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Reddy HR, Subba Reddy CV, Subashini R, Roopan SM. Fluorescent and antioxidant studies of effectively synthesized isochromenopyrrolone analogues. RSC Adv 2014. [DOI: 10.1039/c4ra02792b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient strategy for the synthesis of 3-acetyl-2-methyl-1-phenylisochromeno [4,3-b] pyrrol-5(1H)-ones 4a–f have been developed using montmorillonite K10 as a catalyst. The synthesized compounds have prominent antioxidant activity and fluorescence properties.
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Affiliation(s)
| | | | | | - Selvaraj Mohana Roopan
- Organic Chemistry Division
- School of Advanced Sciences
- VIT University
- Vellore 632014, India
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36
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Ashraf Z, Saeed A, Nadeem H. Design, synthesis and docking studies of some novel isocoumarin analogues as antimicrobial agents. RSC Adv 2014. [DOI: 10.1039/c4ra07223e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The isocoumarins have been designed and prepared by incorporating the NSAIDs to discover potential inhibitors of UDP-N-acetylmuramyl-l-alanine ligase (MurC).
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Affiliation(s)
- Zaman Ashraf
- Department of Chemistry
- Allama Iqbal Open University
- Islamabad 44000, Pakistan
- Department of Biology
- College of Natural Sciences
| | - Aamer Saeed
- Department of Chemistry
- Quaid-I-Azam University
- Islamabad 45320, Pakistan
| | - Humaira Nadeem
- Riphah Institute of Pharmaceutical Sciences
- Riphah International University
- Islamabad, Pakistan
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37
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Figueroa M, Raja H, Falkinham JO, Adcock AF, Kroll DJ, Wani MC, Pearce CJ, Oberlies NH. Peptaibols, tetramic acid derivatives, isocoumarins, and sesquiterpenes from a Bionectria sp. (MSX 47401). JOURNAL OF NATURAL PRODUCTS 2013; 76:1007-15. [PMID: 23806109 PMCID: PMC3736820 DOI: 10.1021/np3008842] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
An extract of the filamentous fungus Bionectria sp. (MSX 47401) showed both promising cytotoxic activity (>90% inhibition of H460 cell growth at 20 μg/mL) and antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA). A bioactivity-directed fractionation study yielded one new peptaibol (1) and one new tetramic acid derivative (2), and the fungus biosynthesized diverse secondary metabolites with mannose-derived units. Five known compounds were also isolated: clonostachin (3), virgineone (4), virgineone aglycone (5), AGI-7 (6), and 5,6-dihydroxybisabolol (7). Compounds 5 and 7 have not been described previously from natural sources. Compound 1 represents the second member of the peptaibol structural class that contains an ester-linked sugar alcohol (mannitol) instead of an amide-linked amino alcohol, and peptaibols and tetramic acid derivatives have not been isolated previously from the same fungus. The structures of the new compounds were elucidated primarily by high-field NMR (950 and 700 MHz), HRESIMS/MS, and chemical degradations (Marfey's analysis). All compounds (except 6) were examined for antibacterial and antifungal activities. Compounds 2, 4, and 5 showed antimicrobial activity against S. aureus and several MRSA isolates.
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Affiliation(s)
- Mario Figueroa
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, Unites States
| | - Huzefa Raja
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, Unites States
| | - Joseph O. Falkinham
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, Unites States
| | - Audrey F. Adcock
- Department of Pharmaceutical Sciences, BRITE, North Carolina Central University, Durham, NC 27707, Unites States
| | - David J. Kroll
- Department of Pharmaceutical Sciences, BRITE, North Carolina Central University, Durham, NC 27707, Unites States
| | - Mansukh C. Wani
- Natural Products Laboratory, Research Triangle Institute, Research Triangle Park, NC 27709
| | | | - Nicholas H. Oberlies
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, Unites States
- To whom correspondence should be addressed. . Tel: 336-334-5474
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38
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Qi J, Shao CL, Li ZY, Gan LS, Fu XM, Bian WT, Zhao HY, Wang CY. Isocoumarin derivatives and benzofurans from a sponge-derived Penicillium sp. fungus. JOURNAL OF NATURAL PRODUCTS 2013; 76:571-579. [PMID: 23477451 DOI: 10.1021/np3007556] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Ten new fungal metabolites, including three hydroisocoumarins, penicimarins A-C (1-3), three isocoumarins, penicimarins D-F (6-8), and four benzofurans, penicifurans A-D (11-14), together with four known isocoumarin derivatives (4, 5, 9, 10), were obtained from the sponge-derived fungus Penicillium sp. MWZ14-4, collected from the South China Sea. Their planar structures and relative configurations were elucidated by detailed analysis of spectroscopic data and by comparison with related known compounds. The absolute configurations of 1-4 were assigned by the modified Mosher's method and TDDFT ECD calculations together with comparison of their CD spectra. Compound 1 represents a rare naturally occurring isocoumarin derivative with 4-substitution, but no substituent at the 3-position. These compounds were evaluated for antibacterial activities and cytotoxic activities in vitro. Among them, penicifuran A (11) exhibited inhibitory activity against Staphylococcus albus with an MIC value of 3.13 μM.
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Affiliation(s)
- Jun Qi
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
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39
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Guo XX. Synthesis of Isocoumarin Derivatives by Copper-Catalyzed Addition of o-Halobenzoic Acids to Active Internal Alkynes. J Org Chem 2013; 78:1660-4. [DOI: 10.1021/jo302499k] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xun-Xiang Guo
- Shanghai Center for Systems
Biomedicine, Ministry of
Education Key Laboratory of Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
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40
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Li Q, Yan Y, Wang X, Gong B, Tang X, Shi J, Xu HE, Yi W. Water as a green solvent for efficient synthesis of isocoumarins through microwave-accelerated and Rh/Cu-catalyzed C–H/O–H bond functionalization. RSC Adv 2013. [DOI: 10.1039/c3ra43175d] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Chen PY, Huang KS, Tsai CC, Wang TP, Wang EC. Pd(II)-Mediated Cyclization of o-Allylbenzaldehydes in Water: A Novel Synthesis of Isocoumarins. Org Lett 2012; 14:4930-3. [DOI: 10.1021/ol302256y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Po-Yuan Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan, and School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 82445, Taiwan
| | - Keng-Shiang Huang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan, and School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 82445, Taiwan
| | - Chin-Chuan Tsai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan, and School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 82445, Taiwan
| | - Tzu-Pin Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan, and School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 82445, Taiwan
| | - Eng-Chi Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan, and School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 82445, Taiwan
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42
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Cai S, Wang F, Xi C. Assembly of 3-Substituted Isocoumarins via a CuI-Catalyzed Domino Coupling/Addition/Deacylation Process. J Org Chem 2012; 77:2331-6. [DOI: 10.1021/jo2026433] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shangjun Cai
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Fei Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Elemento-Organic
Chemistry, Nankai University, Tianjin 300071,
China
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43
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Li Z, Hong J, Weng L, Zhou X. Facile synthesis of sulfenyl-substituted isocoumarins, heterocycle-fused pyrones and 3-(inden-1-ylidene)isobenzofuranones by FeCl3-promoted regioselective annulation of o-(1-alkynyl)benzoates and o-(1-alkynyl)heterocyclic carboxylates with disulfides. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Soleimani E, Zainali M. Isocyanide-Based Multicomponent Reactions: Synthesis of Alkyl-2-(1-(alkylcarbamoyl)-2,2-dicyanoethyl)benzoate and Isochromeno[3,4-b]pyrrole Derivatives. J Org Chem 2011; 76:10306-11. [DOI: 10.1021/jo201908f] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ebrahim Soleimani
- Department of Chemistry, Razi University, Kermanshah 67149-67346, Iran
| | - Mohsen Zainali
- Department of Chemistry, Razi University, Kermanshah 67149-67346, Iran
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45
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Pathak S, Kundu A, Pramanik A. Facile synthesis of substituted pyrrole-fused isocoumarins from ninhydrin. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.133] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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46
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Saeed A, Ashraf Z, Rafique H. Total synthesis and cytotoxic activity of stellatin. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2011; 13:97-104. [PMID: 21279872 DOI: 10.1080/10286020.2010.544654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Stellatin (3,4-dihydro-8-hydroxy-7-hydroxymethyl-6-methoxyisocoumarin) (8), an extrolite of fungal genera Emericella and Aspergillus, was synthesized. Thus, Vilsmeier-Haack formylation of methyl ester of 3,5-dimethoxy-4-methylphenylacetic acid (1) to afford the formyl ester (2) followed sulfamic acid-sodium chlorite oxidation of the aldehydic function to yield the carboxy ester (3). Chemoselective reduction of ester function in the latter using NaBH(4)/THF/MeOH furnished the corresponding hydroxy acid (4) that on cyclodehydration afforded the 3,4-dihydro-6,8-dimethoxy-7-methylisocoumarin (5). Benzylic bromination of the C-7 methyl in 5 using NBS/benzoyl peroxide to give the 7-bromomethyldihydroisocoumarin (6) followed the nucleophilic substitution using aqueous acetone to provide 7-hydroxymethyl-dihydroisocoumarin (7). Finally, the regioselective demethylation of 8-methoxyl group using anhydrous magnesium iodide furnished the stellatin (8). The dihydroisocoumarins (5-8) were screened for cytotoxic activity against human keratinocyte cell line and were found to exhibit moderate to good activity.
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Affiliation(s)
- Aamer Saeed
- Department of Chemistry, Quaid-I-Azam University, Islamabad, Pakistan.
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47
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Raza AR, Saddiqa A, Tahir MN, Saddiq S. 2-(2-Oxothio-lan-3-yl)isoindoline-1,3-dione. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o2979. [PMID: 21589145 PMCID: PMC3009250 DOI: 10.1107/s1600536810043400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2010] [Accepted: 10/25/2010] [Indexed: 11/21/2022]
Abstract
In the title compound, C12H9NO3S, the isoindoline-1,3-dione group is almost planar, with an r.m.s. deviation of 0.020 Å, whereas the heterocyclic ring approximates to an envelope with the methylene group not adjacent to the S atom in the flap position. A short intramolecular C—H⋯O contact generates an S(6) ring motif. In the crystal structure, weak aromatic π–π stacking interactions occur between the centroids of the benzene rings at a distance of 3.558 (2) Å.
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48
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49
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50
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Peuchmaur M, Lisowski V, Gandreuil C, Maillard LT, Martinez J, Hernandez JF. Solid-Phase Synthesis of Isocoumarins: A Traceless Halocyclization Approach. J Org Chem 2009; 74:4158-65. [DOI: 10.1021/jo900281a] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marine Peuchmaur
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
| | - Vincent Lisowski
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
| | - Céline Gandreuil
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
| | - Ludovic T. Maillard
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
| | - Jean-François Hernandez
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
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