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Wu JY, Huang LL, Fu JL, Li JY, Lin S, Yang S, Huang ZS, Wang H, Li Q. N-Halosuccinimide enables cascade oxidative trifluorination and halogenative cyclization of tryptamine-derived isocyanides. Nat Commun 2024; 15:8917. [PMID: 39414820 PMCID: PMC11484912 DOI: 10.1038/s41467-024-53271-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 10/08/2024] [Indexed: 10/18/2024] Open
Abstract
Both the pyrroloindoline core and N-CF3 moiety hold significant importance in medicinal chemistry. However, to date, no instances of constructing N-CF3-containing pyrroloindolines have been reported. Herein, we present a robust and operationally simple approach to assembling such intriguing skeletons from tryptamine-derived isocyanides through a cascade sequence, which includes an oxidative trifluorination and a subsequent halogenative cyclization. Key to the success lies in the development of a facile conversion of isocyanides to N-CF3 moiety with commercially available reagents N-halosuccinimide and Et3N·HF. The protocol features mild reaction conditions, broad functional group tolerance, good to excellent yields, and high diastereoselectivities. In addition, we demonstrate that the halide substituent within the products serves as a versatile functional handle for accessing diverse C3-quaternary-substituted N-CF3-pyrroloindolines.
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Affiliation(s)
- Jun-Yunzi Wu
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Long-Ling Huang
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jia-Luo Fu
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jia-Yi Li
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shuang Lin
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shuang Yang
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhi-Shu Huang
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Honggen Wang
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China.
| | - Qingjiang Li
- State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China.
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2
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Li H, Zhou Y, Tan Z, Wang X, Zhang Y, Wang F, Feng X, Liu X. Enantioselective sulfonylation to construct 3-sulfonylated oxindoles. Chem Commun (Camb) 2024; 60:4354-4357. [PMID: 38546230 DOI: 10.1039/d4cc00802b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Asymmetric synthesis of 3-sulfonylated 3-substituted oxindoles through the addition of sodium sulfinate salts to 3-bromo-3-substituted oxindoles has been achieved using chiral nickel complexes of N,N'-dioxides. This method facilitates the creation of diverse chiral sulfonyl oxindoles, several of which display promising anticancer properties. Notably, the catalyst demonstrates remarkable tolerance to water, crucial for maintaining enantioselectivity. Furthermore, the utilization of topographic steric maps of the catalysts offers valuable insights into the mechanism underlying enantioselection reversal.
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Affiliation(s)
- Hongye Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Zheng Tan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiangyu Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Yuxin Zhang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610064, China
| | - Fei Wang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
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3
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Zhou Y, Ma S, Li X, Liu X, Gao J, Lü D, Wang Y, Zheng S. Synthesis and antifungal activity of hexahydropyrrolidoindole alkaloids. Nat Prod Res 2024:1-9. [PMID: 38529798 DOI: 10.1080/14786419.2024.2333047] [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: 01/19/2024] [Accepted: 03/13/2024] [Indexed: 03/27/2024]
Abstract
Twenty-one hexahydropyrrolidoindole alkaloids were designed and synthesised via acylation reaction at the 3-N position from the commercially available indole-3-acetonitrile as the starting material in excellent yields. The effects of all target compounds against Verticillium dahlia, Fusarium oxysperium sp., Cytospora juglandis, Aspergillu sflavu, Aspergillus niger and Fusarium oxysporum were determined. The results of bioassays indicated that the majority of tested compounds displayed comparable or better in vitro bioactivity than the positive control. Notably, compounds 8 and 17 revealed potent activity against C. juglandis and A. sflavu, both with the same minimum inhibitory concentration value of 1.9 µg mL-1, which has fungicidal activity far exceeded that of amphotericin B and chlorothalonil.
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Affiliation(s)
- Yujie Zhou
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Shoude Ma
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Xiaohan Li
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Xinye Liu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Jie Gao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Dingding Lü
- School of Nursing, Zhenjiang College, Zhenjiang, China
| | - Ya Wang
- School of Nursing, Zhenjiang College, Zhenjiang, China
| | - Shaojun Zheng
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
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4
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Liu D, Zhao Y, Patureau FW. NaI/PPh 3-catalyzed visible-light-mediated decarboxylative radical cascade cyclization of N-arylacrylamides for the efficient synthesis of quaternary oxindoles. Beilstein J Org Chem 2023; 19:57-65. [PMID: 36741816 PMCID: PMC9874234 DOI: 10.3762/bjoc.19.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/08/2022] [Indexed: 01/18/2023] Open
Abstract
A practical NaI/PPh3-catalyzed decarboxylative radical cascade cyclization of N-arylacrylamides with redox-active esters is described, which is mediated by visible light irradiation. A wide range of substrates bearing different substituents and derived from ubiquitous carboxylic acids, including α-amino acids, were synthesized and examined under this very mild, efficient, and cost effective transition-metal-free synthetic method. These afforded various functionalized oxindoles featuring a C3 quaternary stereogenic center. Mechanistic experiments suggest a radical mechanism.
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Affiliation(s)
- Dan Liu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Yue Zhao
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Frederic W Patureau
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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5
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Asymmetric catalytic alkylation of vinyl azides with 3-bromo oxindoles: water-assisted chemo- and enantiocontrol. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1500-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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6
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Xie C, Kim J, Mai BK, Cao S, Ye R, Wang XY, Liu P, Kwon O. Enantioselective Synthesis of Quaternary Oxindoles: Desymmetrizing Staudinger-Aza-Wittig Reaction Enabled by a Bespoke HypPhos Oxide Catalyst. J Am Chem Soc 2022; 144:21318-21327. [PMID: 36375169 PMCID: PMC10746329 DOI: 10.1021/jacs.2c09421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper describes a catalytic asymmetric Staudinger-aza-Wittig reaction of (o-azidoaryl)malonates, allowing access to chiral quaternary oxindoles through phosphine oxide catalysis. We designed a novel HypPhos oxide catalyst to enable the desymmetrizing Staudinger-aza-Wittig reaction through the PIII/PV═O redox cycle in the presence of a silane reductant and an IrI-based Lewis acid. The reaction occurs under mild conditions, with good functional group tolerance, a wide substrate scope, and excellent enantioselectivity. Density functional theory revealed that the enantioselectivity in the desymmetrizing reaction arose from the cooperative effects of the IrI species and the HypPhos catalyst. The utility of this methodology is demonstrated by the (formal) syntheses of seven alkaloid targets: (-)-gliocladin C, (-)-coerulescine, (-)-horsfiline, (+)-deoxyeseroline, (+)-esermethole, (+)-physostigmine, and (+)-physovenine.
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Affiliation(s)
- Changmin Xie
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Jacob Kim
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Binh Khanh Mai
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Shixuan Cao
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Rong Ye
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Xin-Yi Wang
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California─Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, California 90095-1569, United States
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7
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Zhang H, Wang Y, Wang Y, Li X, Wang S, Wang Z. Recent advance on carbamate-based cholinesterase inhibitors as potential multifunctional agents against Alzheimer's disease. Eur J Med Chem 2022; 240:114606. [PMID: 35858523 DOI: 10.1016/j.ejmech.2022.114606] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/08/2022] [Accepted: 07/09/2022] [Indexed: 12/17/2022]
Abstract
Alzheimer's disease (AD), as the fourth leading cause of death among the elderly worldwide, has brought enormous challenge to the society. Due to its extremely complex pathogeneses, the development of multi-target directed ligands (MTDLs) becomes the major strategy for combating AD. Carbamate moiety, as an essential building block in the development of MTDLs, exhibits structural similarity to neurotransmitter acetylcholine (ACh) and has piqued extensive attention in discovering multifunctional cholinesterase inhibitors. To date, numerous preclinical studies demonstrate that carbamate-based cholinesterase inhibitors can prominently increase the level of ACh and improve cognition impairments and behavioral deficits, providing a privileged strategy for the treatment of AD. Based on the recent research focus on the novel cholinesterase inhibitors with multiple biofunctions, this review aims at summarizing and discussing the most recent studies excavating the potential carbamate-based MTDLs with cholinesterase inhibition efficacy, to accelerate the pace of pleiotropic cholinesterase inhibitors for coping AD.
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Affiliation(s)
- Honghua Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Yuying Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yuqing Wang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Xuelin Li
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Shuzhi Wang
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Zhen Wang
- The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
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8
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Sun C, Tian W, Lin Z, Qu X. Biosynthesis of pyrroloindoline-containing natural products. Nat Prod Rep 2022; 39:1721-1765. [PMID: 35762180 DOI: 10.1039/d2np00030j] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Covering: up to 2022Pyrroloindoline is a privileged tricyclic indoline motif widely present in many biologically active and medicinally valuable natural products. Thus, understanding the biosynthesis of this molecule is critical for developing convenient synthetic routes, which is highly challenging for its chemical synthesis due to the presence of rich chiral centers in this molecule, especially the fully substituted chiral carbon center at the C3-position of its rigid tricyclic structure. In recent years, progress has been made in elucidating the biosynthetic pathways and enzymatic mechanisms of pyrroloindoline-containing natural products (PiNPs). This article reviews the main advances in the past few decades based on the different substitutions on the C3 position of PiNPs, especially the various key enzymatic mechanisms involved in the biosynthesis of different types of PiNPs.
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Affiliation(s)
- Chenghai Sun
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Wenya Tian
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Zhi Lin
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China. .,Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xudong Qu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China. .,Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, China
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9
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Gunasekar R, Goodyear RL, Silvestri IP, Xiao J. Recent Developments in Enantio- and Diastereoselective Hydrogenation of N-Heteroaromatic Compounds. Org Biomol Chem 2022; 20:1794-1827. [DOI: 10.1039/d1ob02331d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enantioselective and diastereoselective hydrogenation of N-heteroaromatic compounds is an efficient strategy to access chirally enriched cyclic heterocycles, which often possess highly bio-active properties. This strategy, however, has only been...
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10
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Cheng S, Luo Y, Yu T, Li J, Gan C, Luo S, Zhu Q. Palladium-Catalyzed Four-Component Cascade Imidoyl-Carbamoylation of Unactivated Alkenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c05319] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sidi Cheng
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, People’s Republic of China
| | - Yu Luo
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, People’s Republic of China
| | - Ting Yu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, People’s Republic of China
| | - Jing Li
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, People’s Republic of China
| | - Chunfang Gan
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, People’s Republic of China
| | - Shuang Luo
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, People’s Republic of China
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, People’s Republic of China
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, People’s Republic of China
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11
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Islam MS, Alammari AS, Barakat A, Alshahrani S, Haukka M, Al-Majid AM. Exploiting the Chiral Ligands of Bis(imidazolinyl)- and Bis(oxazolinyl)thiophenes-Synthesis and Application in Cu-Catalyzed Friedel-Crafts Asymmetric Alkylation. Molecules 2021; 26:molecules26237408. [PMID: 34885989 PMCID: PMC8658940 DOI: 10.3390/molecules26237408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 12/03/2022] Open
Abstract
Five new C2-symmetric chiral ligands of 2,5-bis(imidazolinyl)thiophene (L1–L3) and 2,5-bis(oxazolinyl)thiophene (L4 and L5) were synthesized from thiophene-2,5-dicarboxylic acid (1) with enantiopure amino alcohols (4a–c) in excellent optical purity and chemical yield. The utility of these new chiral ligands for Friedel–Crafts asymmetric alkylation was explored. Subsequently, the optimized tridentate ligand L5 and Cu(OTf)2 catalyst (15 mol%) in toluene for 48 h promoted Friedel–Crafts asymmetric alkylation in moderate to good yields (up to 76%) and with good enantioselectivity (up to 81% ee). The bis(oxazolinyl)thiophene ligands were more potent than bis(imidazolinyl)thiophene analogues for the asymmetric induction of the Friedel–Crafts asymmetric alkylation.
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Affiliation(s)
- Mohammad Shahidul Islam
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia or (A.S.A.); (A.B.); or (S.A.)
- Correspondence: (M.S.I.); (A.M.A-M.)
| | - Abdullah Saleh Alammari
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia or (A.S.A.); (A.B.); or (S.A.)
| | - Assem Barakat
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia or (A.S.A.); (A.B.); or (S.A.)
| | - Saeed Alshahrani
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia or (A.S.A.); (A.B.); or (S.A.)
| | - Matti Haukka
- Department of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland; (M.H.)
| | - Abdullah Mohammed Al-Majid
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia or (A.S.A.); (A.B.); or (S.A.)
- Correspondence: (M.S.I.); (A.M.A-M.)
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12
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Shen Y, Lei N, Lu C, Xi D, Geng X, Tao P, Su Z, Zheng K. Construction of sterically congested oxindole derivatives via visible-light-induced radical-coupling. Chem Sci 2021; 12:15399-15406. [PMID: 34976361 PMCID: PMC8635216 DOI: 10.1039/d1sc05273j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/03/2021] [Indexed: 01/04/2023] Open
Abstract
The oxindole scaffold represents an important structural feature in many natural products and pharmaceutically relevant molecules. Herein, we report a visible-light-induced modular methodology for the synthesis of complex 3,3'-disubstituted oxindole derivatives. A library of valuable fluoroalkyl-containing highly sterically congested oxindole derivatives can be synthesized by a catalytic three-component radical coupling reaction under mild conditions (metal & photocatalyst free, >80 examples). This strategy shows high functional group tolerance and broad substrate compatibility (including a wide variety of terminal or non-terminal alkenes, conjugated dienes and enynes, and a broad array of polyfluoroalkyl iodide and oxindoles), which enables modular modification of complex drug-like compounds in one chemical step. The success of solar-driven transformation, large-scale synthesis, and the late-stage functionalization of bioactive molecules, as well as promising tumor-suppressing biological activities, highlights the potential for practical applications of this strategy. Mechanistic investigations, including a series of control experiments, UV-vis spectroscopy and DFT calculations, suggest that the reaction underwent a sequential two-step radical-coupling process and the photosensitive perfluoroalkyl benzyl iodides are key intermediates in the transformation.
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Affiliation(s)
- Yanling Shen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Ning Lei
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Cong Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Dailin Xi
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Xinxin Geng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Pan Tao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
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13
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Schneider P, Henßen B, Paschold B, Chapple BP, Schatton M, Seebeck FP, Classen T, Pietruszka J. Biocatalytic C3-Indole Methylation-A Useful Tool for the Natural-Product-Inspired Stereoselective Synthesis of Pyrroloindoles. Angew Chem Int Ed Engl 2021; 60:23412-23418. [PMID: 34399441 PMCID: PMC8596708 DOI: 10.1002/anie.202107619] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/28/2021] [Indexed: 01/11/2023]
Abstract
Enantioselective synthesis of bioactive compounds bearing a pyrroloindole framework is often laborious. In contrast, there are several S-adenosyl methionine (SAM)-dependent methyl transferases known for stereo- and regioselective methylation at the C3 position of various indoles, directly leading to the formation of the desired pyrroloindole moiety. Herein, the SAM-dependent methyl transferase PsmD from Streptomyces griseofuscus, a key enzyme in the biosynthesis of physostigmine, is characterized in detail. The biochemical properties of PsmD and its substrate scope were demonstrated. Preparative scale enzymatic methylation including SAM regeneration was achieved for three selected substrates after a design-of-experiment optimization.
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Affiliation(s)
- Pascal Schneider
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
| | - Birgit Henßen
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1)Forschungszentrum Jülich GmbH52428JülichGermany
| | - Beatrix Paschold
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
| | - Benjamin P. Chapple
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
| | - Marcel Schatton
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
| | - Florian P. Seebeck
- Department of ChemistryUniversity of BaselMattenstrasse 24aCH-4058BaselSwitzerland
| | - Thomas Classen
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1)Forschungszentrum Jülich GmbH52428JülichGermany
| | - Jörg Pietruszka
- Institut für Bioorganische ChemieHeinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich and Bioeconomy Science Center (BioSC)Stetternicher Forst, Geb. 15.852426JülichGermany
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1)Forschungszentrum Jülich GmbH52428JülichGermany
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14
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Akkol EK, Karatoprak GŞ, Carpar E, Hussain Y, Khan H, Aschner M. Effects of Natural Products on Neuromuscular Junction. Curr Neuropharmacol 2021; 20:594-610. [PMID: 34561984 DOI: 10.2174/1570159x19666210924092627] [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: 01/11/2021] [Revised: 05/05/2021] [Accepted: 06/01/2021] [Indexed: 11/22/2022] Open
Abstract
Neuromuscular junction (NMJ) disorders result from damage, malfunction or absence of one or more key proteins involved in neuromuscular transmission, comprising a wide range of disorders. The most common pathology is antibody-mediated or downregulation of ion channels or receptors, resulting in Lambert-Eaton myasthenic syndrome, myasthenia gravis, and acquired neuromyotonia (Isaac's syndrome), and rarely congenital myasthenic syndromes caused by mutations in NMJ proteins. A wide range of symptomatic treatments, immunomodulating therapies, or immunosuppressive drugs have been used to treat NMJ diseases. Future research must be directed at better understanding of the pathogenesis of these diseases, and developing novel disease-specific treatments. Numerous secondary metabolites, especially alkaloids isolated from plants have been used to treat NMJ diseases in traditional and clinical practices. An ethnopharmacological approach has provided leads for identifying new treatment for NMJ diseases. In this review, we performed a literature survey in Pubmed, Science Direct, and Google Scholar to gather information on drug discovery from plant sources for NMJ disease treatments. To date, most research has focused on the effect of herbal remedies on cholinesterase inhibitory and antioxidant activities. This review provides leads for identifying potential new drugs from plant sources for the treatment of NMJ diseases.
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Affiliation(s)
- Esra Küpeli Akkol
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, 06330, Ankara. Turkey
| | - Gökçe Şeker Karatoprak
- Department of Pharmacognosy, Faculty of Pharmacy, Erciyes University, 38039, Kayseri. Turkey
| | - Elif Carpar
- Department of Psychiatry, Private French La Paix Hospital, 34360, Istanbul. Turkey
| | - Yaseen Hussain
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Mardan. Pakistan
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine Forchheimer 209 1300 Morris Park Avenue, Bronx, NY 10461, United States
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15
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Schneider P, Henßen B, Paschold B, Chapple BP, Schatton M, Seebeck FP, Classen T, Pietruszka J. Biokatalytische C3‐Indol‐Methylierung – ein nützliches Werkzeug für die naturstoffinspirierte stereoselektive Synthese von Pyrroloindolen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Pascal Schneider
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
| | - Birgit Henßen
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1) Forschungszentrum Jülich GmbH 52428 Jülich Deutschland
| | - Beatrix Paschold
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
| | - Benjamin P. Chapple
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
| | - Marcel Schatton
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
| | - Florian P. Seebeck
- Department of Chemistry University of Basel Mattenstrasse 24a 4058 Basel Schweiz
| | - Thomas Classen
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1) Forschungszentrum Jülich GmbH 52428 Jülich Deutschland
| | - Jörg Pietruszka
- Institut für Bioorganische Chemie Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich und Bioeconomy Science Center (BioSC) Stetternicher Forst, Geb. 15.8 52426 Jülich Deutschland
- Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1) Forschungszentrum Jülich GmbH 52428 Jülich Deutschland
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16
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Winand L, Schneider P, Kruth S, Greven NJ, Hiller W, Kaiser M, Pietruszka J, Nett M. Mutasynthesis of Physostigmines in Myxococcus xanthus. Org Lett 2021; 23:6563-6567. [PMID: 34355569 DOI: 10.1021/acs.orglett.1c02374] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The alkaloid physostigmine is an approved anticholinergic drug and an important lead structure for the development of novel therapeutics. Using a complementary approach that merged chemical synthesis with pathway refactoring, we produced a series of physostigmine analogues with altered specificity and toxicity profiles in the heterologous host Myxococcus xanthus. The compounds that were generated by applying a simple feeding strategy include the promising drug candidate phenserine, which was previously accessible only by total synthesis.
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Affiliation(s)
- Lea Winand
- Department of Biochemical and Chemical Engineering, TU Dortmund University, Dortmund, 44227 Nordrhein-Westfalen, Germany
| | - Pascal Schneider
- Institute of Bioorganic Chemistry, Heinrich-Heine-University Düsseldorf at Forschungszentrum Jülich, Jülich, 44227 Nordrhein-Westfalen, Germany
| | - Sebastian Kruth
- Department of Biochemical and Chemical Engineering, TU Dortmund University, Dortmund, 44227 Nordrhein-Westfalen, Germany
| | - Nico-Joel Greven
- Department of Biochemical and Chemical Engineering, TU Dortmund University, Dortmund, 44227 Nordrhein-Westfalen, Germany
| | - Wolf Hiller
- Department of Chemistry and Chemical Biology, TU Dortmund University, Dortmund, 44227 Nordrhein-Westfalen, Germany
| | - Marcel Kaiser
- Parasite Chemotherapy Unit, Swiss Tropical and Public Health Institute, 4002 Basel, Switzerland.,University of Basel, 4001 Basel, Switzerland
| | - Jörg Pietruszka
- Institute of Bioorganic Chemistry, Heinrich-Heine-University Düsseldorf at Forschungszentrum Jülich, Jülich, 44227 Nordrhein-Westfalen, Germany.,Institut für Bio- und Geowissenschaften: Biotechnologie (IBG-1), Forschungszentrum Jülich, Jülich, 52428 Nordrhein-Westfalen, Germany
| | - Markus Nett
- Department of Biochemical and Chemical Engineering, TU Dortmund University, Dortmund, 44227 Nordrhein-Westfalen, Germany
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17
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Abstract
Herein we report a nickel-catalyzed asymmetric reductive dicarbamoylation of alkenes, in which tethered carbamoyl chlorides and isocyanates serve as distinct electrophilic carbamoylating agents, providing new access to chiral oxindoles bearing an amide-substituted quaternary stereogenic center.
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Affiliation(s)
- Jiaoyang Wu
- Hefei National Laboratory for Physical Science at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chuan Wang
- Hefei National Laboratory for Physical Science at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.,Center for Excellence in Molecular Synthesis of CAS, Hefei, Anhui 230026, P. R. China
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18
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Du J, Wang X, Wang H, Wei J, Huang X, Song J, Zhang J. Photoinduced Palladium-Catalyzed Intermolecular Radical Cascade Cyclization of N-Arylacrylamides with Unactivated Alkyl Bromides. Org Lett 2021; 23:5631-5635. [PMID: 34236201 DOI: 10.1021/acs.orglett.1c01698] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A mild visible-light-induced Pd-catalyzed intermolecular radical cascade reaction of N-arylacrylamides with unactivated alkyl bromides is disclosed. Photoexcited Pd complexes transfer a single electron in this protocol, and hybrid alkyl Pd-radical species are involved as the key reaction intermediates. Sophisticated bioactive oxindole derivatives bearing various substituents and substitution patterns can be efficiently afforded through this approach.
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Affiliation(s)
- Juan Du
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China.,College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Xing Wang
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Hongling Wang
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Jinhu Wei
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Xuan Huang
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Jun Song
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Junmin Zhang
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
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19
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Shen X, Peng T, Wang F, Li S, Lei X, Yunxiao, Wang, Cheng F, Liu T. Copper(I)‐Catalyzed Cascade Cyclization to the Total Synthesis of Hexahydropyrroloindole Alkaloids: Flustramine B and Debromoflustramine B. ChemistrySelect 2021. [DOI: 10.1002/slct.202101134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xianfu Shen
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
| | - Tianfeng Peng
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
| | - Fan Wang
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
| | - Shumin Li
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
| | - Xingfu Lei
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
| | - Yunxiao
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
| | - Wang
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
| | - Feixiang Cheng
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
| | - Teng Liu
- College of Chemistry and Environmental Science College of Biological Resource and Food Engineering Qujing Normal University Qujing 655011 P. R. China
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20
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Ghiam MK, Patel SD, Hoffer A, Selman WR, Hoffer BJ, Hoffer ME. Drug Repurposing in the Treatment of Traumatic Brain Injury. Front Neurosci 2021; 15:635483. [PMID: 33833663 PMCID: PMC8021906 DOI: 10.3389/fnins.2021.635483] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/19/2021] [Indexed: 01/02/2023] Open
Abstract
Traumatic brain injury (TBI) is the most common cause of morbidity among trauma patients; however, an effective pharmacological treatment has not yet been approved. Individuals with TBI are at greater risk of developing neurological illnesses such as Alzheimer's disease (AD) and Parkinson's disease (PD). The approval process for treatments can be accelerated by repurposing known drugs to treat the growing number of patients with TBI. This review focuses on the repurposing of N-acetyl cysteine (NAC), a drug currently approved to treat hepatotoxic overdose of acetaminophen. NAC also has antioxidant and anti-inflammatory properties that may be suitable for use in therapeutic treatments for TBI. Minocycline (MINO), a tetracycline antibiotic, has been shown to be effective in combination with NAC in preventing oligodendrocyte damage. (-)-phenserine (PHEN), an anti-acetylcholinesterase agent with additional non-cholinergic neuroprotective/neurotrophic properties initially developed to treat AD, has demonstrated efficacy in treating TBI. Recent literature indicates that NAC, MINO, and PHEN may serve as worthwhile repositioned therapeutics in treating TBI.
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Affiliation(s)
- Michael K. Ghiam
- Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Shrey D. Patel
- University of Miami Miller School of Medicine, Miami, FL, United States
| | - Alan Hoffer
- Department of Neurological Surgery, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Warren R. Selman
- Department of Neurological Surgery, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Barry J. Hoffer
- Department of Neurological Surgery, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Michael E. Hoffer
- Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
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21
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Mei GJ, Koay WL, Tan CXA, Lu Y. Catalytic asymmetric preparation of pyrroloindolines: strategies and applications to total synthesis. Chem Soc Rev 2021; 50:5985-6012. [DOI: 10.1039/d0cs00530d] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Pyrroloindolines are widely present in natural products. In this review, we summarize state-of-the-art of catalytic asymmetric synthesis of pyrroloindolines, as well as related applications to natural products total synthesis.
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Affiliation(s)
- Guang-Jian Mei
- Green Catalysis Center, and College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
- Department of Chemistry
| | - Wai Lean Koay
- Department of Chemistry
- National University of Singapore
- Singapore
- Graduate School for Integrative Sciences & Engineering (NGS)
- National University of Singapore
| | - Chuan Xiang Alvin Tan
- Department of Chemistry
- National University of Singapore
- Singapore
- Graduate School for Integrative Sciences & Engineering (NGS)
- National University of Singapore
| | - Yixin Lu
- Department of Chemistry
- National University of Singapore
- Singapore
- Graduate School for Integrative Sciences & Engineering (NGS)
- National University of Singapore
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22
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Agarwal M, Verma K, Kumar Tailor Y, Khandelwal S, Rushell E, Pathak S, Kumari Y, Awasthi K, Kumar M. Efficient and Sustainable Synthesis of Spiroannulated Hybrid Molecules with Privileged Substructures using Nanostructured Heterogeneous Catalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.202003752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Monu Agarwal
- Department of Chemistry University of Rajasthan Jaipur India
| | - Kanchan Verma
- Department of Chemistry University of Rajasthan Jaipur India
| | | | | | - Esha Rushell
- Department of Chemistry University of Rajasthan Jaipur India
| | - Sakshi Pathak
- Department of Chemistry University of Rajasthan Jaipur India
| | - Yogita Kumari
- Soft Materials Lab, Department of Physics Malaviya National Institute of Technology Jaipur India
| | - Kamlendra Awasthi
- Soft Materials Lab, Department of Physics Malaviya National Institute of Technology Jaipur India
| | - Mahendra Kumar
- Department of Chemistry University of Rajasthan Jaipur India
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23
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Mohammadkhani L, Heravi MM. Applications of Transition-Metal-Catalyzed Asymmetric Allylic Substitution in Total Synthesis of Natural Products: An Update. CHEM REC 2020; 21:29-68. [PMID: 33206466 DOI: 10.1002/tcr.202000086] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 01/14/2023]
Abstract
Metal-catalyzed asymmetric allylic substitution (AAS) reaction is one of the most synthetically useful reactions catalyzed by metal complexes for the formation of carbon-carbon and carbon-heteroatom bonds. It comprises the substitution of allylic substrates with a wide range of nucleophiles or SN 2'-type allylic substitution, which results in the formation of the above-mentioned bonds with high levels of enantioselective induction. AAS reaction tolerates a broad range of functional groups, thus has been successfully applied in the asymmetric synthesis of a wide range of optically pure compounds. This reaction has been extensively used in the total synthesis of several complex molecules, especially natural products. In this review, we try to highlight the applications of metal (Pd, Ir, Mo, or Cu)-catalyzed AAS reaction in the total synthesis of the biologically active natural products, as a key step, updating the subject from 2003 till date.
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Affiliation(s)
- Leyla Mohammadkhani
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
| | - Majid M Heravi
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
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24
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Guin S, Saha HK, Patel AK, Gudimella SK, Biswas S, Samanta S. 1,6-Aza-Michael addition of para-quinone methides with N-heterocycles catalyzed by Zn(OTf)2: A regioselective approach to N-diarylmethyl-substituted heterocycles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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25
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Heravi MM, Zadsirjan V, Hamidi H, Daraie M, Momeni T. Recent applications of the Wittig reaction in alkaloid synthesis. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2020; 84:201-334. [PMID: 32416953 DOI: 10.1016/bs.alkal.2020.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The Wittig reaction is the chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide (the Wittig reagent) to afford an alkene and triphenylphosphine oxide. Noteworthy, this reaction results in the synthesis of alkenes in a selective and predictable fashion. Thus, it became as one of the keystone of synthetic organic chemistry, especially in the total synthesis of natural products, where the selectivity of a reaction is paramount of importance. A literature survey disclosed the existence of vast numbers of related reports and comprehensive reviews on the applications of this important name reaction in the total synthesis of natural products. However, the aim of this chapter is to underscore, the applications of the Wittig reaction in the total synthesis of one the most important and prevalent classes of natural products, the alkaloids, especially those showing important and diverse biological activities.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran.
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Hoda Hamidi
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Mansoureh Daraie
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Tayebeh Momeni
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
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26
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Hou H, Xu Y, Yang H, Chen X, Yan C, Shi Y, Zhu S. Visible-Light Mediated Hydrosilylative and Hydrophosphorylative Cyclizations of Enynes and Dienes. Org Lett 2020; 22:1748-1753. [DOI: 10.1021/acs.orglett.0c00024] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hong Hou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Yue Xu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Haibo Yang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Xiaoyun Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Shaoqun Zhu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China
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27
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Yang K, Lou Y, Wang C, Qi L, Fang T, Zhang F, Xu H, Zhou L, Li W, Zhang G, Yu P, Song Q. Chiral Brønsted Acid from Chiral Phosphoric Acid Boron Complex and Water: Asymmetric Reduction of Indoles. Angew Chem Int Ed Engl 2020; 59:3294-3299. [DOI: 10.1002/anie.201913656] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Kai Yang
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Yixian Lou
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
| | - Chenglan Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
| | - Liang‐Wen Qi
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Tongchang Fang
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Feng Zhang
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Hetao Xu
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Lu Zhou
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Wangyang Li
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Guan Zhang
- Institute of Next Generation Matter TransformationCollege of Materials Science Engineering at Huaqiao University 668 Jimei Boulevard Xiamen Fujian 361021 China
| | - Peiyuan Yu
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
- Institute of Next Generation Matter TransformationCollege of Materials Science Engineering at Huaqiao University 668 Jimei Boulevard Xiamen Fujian 361021 China
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28
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Fan P, Lan Y, Zhang C, Wang C. Nickel/Photo-Cocatalyzed Asymmetric Acyl-Carbamoylation of Alkenes. J Am Chem Soc 2020; 142:2180-2186. [DOI: 10.1021/jacs.9b12554] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Pei Fan
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yun Lan
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chang Zhang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chuan Wang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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29
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Yang K, Lou Y, Wang C, Qi L, Fang T, Zhang F, Xu H, Zhou L, Li W, Zhang G, Yu P, Song Q. Chiral Brønsted Acid from Chiral Phosphoric Acid Boron Complex and Water: Asymmetric Reduction of Indoles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Yixian Lou
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
| | - Chenglan Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
| | - Liang‐Wen Qi
- Department of Chemistry and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen 518055 China
| | - Tongchang Fang
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Feng Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Hetao Xu
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Lu Zhou
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Wangyang Li
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Guan Zhang
- Institute of Next Generation Matter Transformation College of Materials Science Engineering at Huaqiao University 668 Jimei Boulevard Xiamen Fujian 361021 China
| | - Peiyuan Yu
- Department of Chemistry and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen 518055 China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
- Institute of Next Generation Matter Transformation College of Materials Science Engineering at Huaqiao University 668 Jimei Boulevard Xiamen Fujian 361021 China
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30
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Tian H, Peng F, Zhang P, Yang H, Fu H. Highly Enantioselective Iridium-Catalyzed Cascade Double Allylation Strategy: Synthesis of Pyrrolidinoindolines with an All-Carbon Quaternary Stereocenter. Org Lett 2019; 21:8501-8505. [DOI: 10.1021/acs.orglett.9b03382] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hua Tian
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Fei Peng
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Pengxiang Zhang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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31
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Computational insight into the anticholinesterase activities and electronic properties of physostigmine analogs. Future Med Chem 2019; 11:1907-1928. [DOI: 10.4155/fmc-2018-0421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Aim: Alzheimer's disease (AD) is known to be themajor cause of dementia among the elderly. The structural properties and binding interactions of the AD drug physostigmine (-)-phy, and its analogues (-)-hex and (-)-phe and (+)-phe, were examined, as well as their impact on the conformational changes of two different AD target enzymes AChE and BChE. Materials & methods: The conformational changes were studied using molecular dynamics and structural properties using Quantum mechanics. Results & conclusions: The binding free energy (ΔGbind) and the change in the free energy surface (FES) computed from the funnel metadynamics (FMD) simulation, both support the idea that inhibitors (-)-phe and (-)-hex have better binding activities toward enzyme AChE, and that (-)-phe is stronger in binding than the present AD drug (-)-phy.
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32
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Liu K, Wang G, Cheng SJ, Jiang WF, He C, Ye ZS. Phosphine-catalyzed dearomative [3+2] annulation of 3-nitroindoles and allenoates. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.06.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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33
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Hsueh SC, Lecca D, Greig NH, Wang JY, Selman W, Hoffer BJ, Miller JP, Chiang YH. (-)-Phenserine Ameliorates Contusion Volume, Neuroinflammation, and Behavioral Impairments Induced by Traumatic Brain Injury in Mice. Cell Transplant 2019; 28:1183-1196. [PMID: 31177840 PMCID: PMC6767878 DOI: 10.1177/0963689719854693] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Traumatic brain injury (TBI), a major cause of mortality and morbidity, affects 10 million people worldwide, with limited treatment options. We have previously shown that (-)-phenserine (Phen), an acetylcholinesterase inhibitor originally designed and tested in clinical phase III trials for Alzheimer's disease, can reduce neurodegeneration after TBI and reduce cognitive impairments induced by mild TBI. In this study, we used a mouse model of moderate to severe TBI by controlled cortical impact to assess the effects of Phen on post-trauma histochemical and behavioral changes. Animals were treated with Phen (2.5 mg/kg, IP, BID) for 5 days started on the day of injury and the effects were evaluated by behavioral and histological examinations at 1 and 2 weeks after injury. Phen significantly attenuated TBI-induced contusion volume, enlargement of the lateral ventricle, and behavioral impairments in motor asymmetry, sensorimotor functions, motor coordination, and balance functions. The morphology of microglia was shifted to an active from a resting form after TBI, and Phen dramatically reduced the ratio of activated to resting microglia, suggesting that Phen also mitigates neuroinflammation after TBI. While Phen has potent anti-acetylcholinesterase activity, its (+) isomer Posiphen shares many neuroprotective properties but is almost completely devoid of anti-acetylcholinesterase activity. We evaluated Posiphen at a similar dose to Phen and found similar mitigation in lateral ventricular size increase, motor asymmetry, motor coordination, and balance function, suggesting the improvement of these histological and behavioral tests by Phen treatment occur via pathways other than anti-acetylcholinesterase inhibition. However, the reduction of lesion size and improvement of sensorimotor function by Posiphen were much smaller than with equivalent doses of Phen. Taken together, these results show that post-injury treatment with Phen over 5 days significantly ameliorates severity of TBI. These data suggest a potential development of this compound for clinical use in TBI therapy.
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Affiliation(s)
- Shih-Chang Hsueh
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,Department of Neurosurgery, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Daniela Lecca
- Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Nigel H Greig
- Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Jia-Yi Wang
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei
| | - Warren Selman
- Department of Neurosurgery, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Barry J Hoffer
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,Department of Neurosurgery, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Jonathan P Miller
- Department of Neurosurgery, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Yung-Hsiao Chiang
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei.,Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei
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34
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Ou W, Zhang G, Wu J, Su C. Photocatalytic Cascade Radical Cyclization Approach to Bioactive Indoline-Alkaloids over Donor–Acceptor Type Conjugated Microporous Polymer. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00693] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Wei Ou
- SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Guoqiang Zhang
- SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jie Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Chenliang Su
- SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
- Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Shenzhen University, Shenzhen 518060, China
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35
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Li Y, Ding Z, Lei A, Kong W. Ni-Catalyzed enantioselective reductive aryl-alkenylation of alkenes: application to the synthesis of (+)-physovenine and (+)-physostigmine. Org Chem Front 2019. [DOI: 10.1039/c9qo00744j] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A Ni-catalyzed enantioselective reductive aryl-alkenylation of alkenes for the synthesis of functionalized oxindoles is developed. With this method, a concise formal synthesis of (+)-physovenine and (+)-physostigmine has been completed.
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Affiliation(s)
- Yuxiu Li
- The College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
| | - Zhengtian Ding
- The College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
| | - Aiwen Lei
- The College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
| | - Wangqing Kong
- The College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan
- P. R. China
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36
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Abstract
This chapter covers the literature since the advent, in the 21st century, of total syntheses of alkaloids using enantio- or diastereoselective organocatalytic reactions to construct the alkaloid scaffolds. The details of these alkaloid syntheses are described separately for each basic skeleton, including indole, indoline, oxindole, and piperidine alkaloids.
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37
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Kanyiva KS, Makino S, Shibata T. Silver-Catalyzed Efficient Synthesis of Oxindoles and Pyrroloindolines via α-Aminoalkylation of N
-Arylacrylamides with Amino Acid Derivatives. Chem Asian J 2018; 13:496-499. [DOI: 10.1002/asia.201701739] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Kyalo Stephen Kanyiva
- Global Center for Science and Engineering, School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
| | - Sohei Makino
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
| | - Takanori Shibata
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
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38
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Rahman A, Zhou Q, Lin X. Asymmetric organocatalytic synthesis of chiral 3,3-disubstituted oxindolesviaa 1,6-conjugate addition reaction. Org Biomol Chem 2018; 16:5301-5309. [DOI: 10.1039/c8ob01169a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The chiral spirocyclic phosphoric acid-catalyzed enantioselective 1,6-conjugate addition reaction ofpara-quinone methides derived fromN-unprotected isatins with indoles was developed.
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Affiliation(s)
- Abdul Rahman
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Qiaoxia Zhou
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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39
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Pandey G, Khamrai J, Mishra A. Generation of All-Carbon Quaternary Stereocenters at the C-3 Carbon of Lactams via [3,3]-Sigmatropic Rearrangement and Revision of Absolute Configuration: Total Synthesis of (−)-Physostigmine. Org Lett 2017; 20:166-169. [DOI: 10.1021/acs.orglett.7b03537] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Ganesh Pandey
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
| | - Jagadish Khamrai
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
| | - Akash Mishra
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
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40
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Hoffer BJ, Pick CG, Hoffer ME, Becker RE, Chiang YH, Greig NH. Repositioning drugs for traumatic brain injury - N-acetyl cysteine and Phenserine. J Biomed Sci 2017; 24:71. [PMID: 28886718 PMCID: PMC5591517 DOI: 10.1186/s12929-017-0377-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 08/30/2017] [Indexed: 12/11/2022] Open
Abstract
Traumatic brain injury (TBI) is one of the most common causes of morbidity and mortality of both young adults of less than 45 years of age and the elderly, and contributes to about 30% of all injury deaths in the United States of America. Whereas there has been a significant improvement in our understanding of the mechanism that underpin the primary and secondary stages of damage associated with a TBI incident, to date however, this knowledge has not translated into the development of effective new pharmacological TBI treatment strategies. Prior experimental and clinical studies of drugs working via a single mechanism only may have failed to address the full range of pathologies that lead to the neuronal loss and cognitive impairment evident in TBI and other disorders. The present review focuses on two drugs with the potential to benefit multiple pathways considered important in TBI. Notably, both agents have already been developed into human studies for other conditions, and thus have the potential to be rapidly repositioned as TBI therapies. The first is N-acetyl cysteine (NAC) that is currently used in over the counter medications for its anti-inflammatory properties. The second is (-)-phenserine ((-)-Phen) that was originally developed as an experimental Alzheimer's disease (AD) drug. We briefly review background information about TBI and subsequently review literature suggesting that NAC and (-)-Phen may be useful therapeutic approaches for TBI, for which there are no currently approved drugs.
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Affiliation(s)
- Barry J Hoffer
- Department of Neurosurgery, Case Western Reserve University School of Medicine, Cleveland, OH, USA.
| | - Chaim G Pick
- Department of Anatomy and Anthropology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Michael E Hoffer
- Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, USA
| | | | - Yung-Hsiao Chiang
- Department of Neurosurgery, Taipei Medical University, Taipei, Taiwan
| | - Nigel H Greig
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
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41
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Kinthada LK, Medisetty SR, Parida A, Babu KN, Bisai A. FeCl3-Catalyzed Allylation Reactions onto 3-Hydroxy-2-oxindoles: Formal Total Syntheses of Bis-cyclotryptamine Alkaloids, (±)-Chimonanthine, and (±)-Folicanthine. J Org Chem 2017; 82:8548-8567. [DOI: 10.1021/acs.joc.7b01232] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lakshmana K. Kinthada
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
| | - Sai Raghavendra Medisetty
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
| | - Amarchand Parida
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
| | - K. Naresh Babu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
| | - Alakesh Bisai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
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42
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Aher RD, Suryavanshi GM, Sudalai A. Diastereoselective Synthesis of Chiral 2,3-Disubstituted Indolines via Formal [3+2]-Cycloaddition of Arynes with γ-Amino-α,β-unsaturated Esters. J Org Chem 2017; 82:5940-5946. [DOI: 10.1021/acs.joc.7b00439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ravindra D. Aher
- Chemical Engineering & Process Development Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - Gurunath M. Suryavanshi
- Chemical Engineering & Process Development Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - Arumugam Sudalai
- Chemical Engineering & Process Development Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
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43
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Dalpozzo R. Recent Catalytic Asymmetric Syntheses of 3,3-Disubstituted Indolin-2-ones and 2,2-Disubstituted Indolin-3-ones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700361] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Renato Dalpozzo
- Dipartimento di Chimica e Tecnologie Chimiche; Università della Calabria; 87030 Arcavacata di Rende (Cs Italy
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44
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Kumar K, More SS, Khatik GL, Rawal RK, Nair VA. A Highly Stereoselective Chiral Auxiliary-assisted Reductive Cyclization to Furoindoline. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kapil Kumar
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 Mohali Punjab 160062 India
- Department of Pharmaceutical Chemistry; Indo-Soviet Friendship College of Pharmacy (ISFCP); Moga Punjab 142001 India
| | - Shital S. More
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 Mohali Punjab 160062 India
| | - Gopal L. Khatik
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences; Lovely Professional University; Phagwara Punjab 144411 India
| | - Ravindra K. Rawal
- Department of Pharmaceutical Chemistry; Indo-Soviet Friendship College of Pharmacy (ISFCP); Moga Punjab 142001 India
| | - Vipin A. Nair
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 Mohali Punjab 160062 India
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45
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Abstract
The construction of chiral disubstituted oxindoles is an intriguing challenge for organic chemists.
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Affiliation(s)
- Renato Dalpozzo
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
- Arcavacata di Rende (Cs) 87030
- Italy
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46
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Karnakanti S, Zang ZL, Zhao S, Shao PL, Hu P, He Y. Palladium-catalyzed oxidative arylacetoxylation of alkenes: synthesis of indole and indoline derivatives. Chem Commun (Camb) 2017; 53:11205-11208. [DOI: 10.1039/c7cc06448a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A method for the oxidative arylacetoxylation of alkenes has been developed to synthesize indole and indoline derivatives from readily accessible substrates.
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Affiliation(s)
- Shuklachary Karnakanti
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University
- Chongqing
- P. R. China
| | - Zhong-Lin Zang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University
- Chongqing
- P. R. China
| | - Sheng Zhao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University
- Chongqing
- P. R. China
| | - Pan-Lin Shao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University
- Chongqing
- P. R. China
| | - Ping Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University
- Chongqing
- P. R. China
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University
- Chongqing
- P. R. China
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47
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Mazza A, Beccalli EM, Contini A, Garcia-Argaez AN, Dalla Via L, Gelmi ML. A new scaffold of topoisomerase I inhibitors: Design, synthesis and biological evaluation. Eur J Med Chem 2016; 124:326-339. [DOI: 10.1016/j.ejmech.2016.08.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 08/09/2016] [Accepted: 08/21/2016] [Indexed: 01/24/2023]
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48
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Wang C, Alluri S, Nikogosyan G, DeCarlo C, Monteiro C, Mabagos G, Feng H, White A, Bartolini M, Andrisano V, Zhang L, Ganguly A. Novel synthesis of physovenine and physostigmine analogs. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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49
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Biswas P, Paul S, Guin J. Aerobic Radical-Cascade Alkylation/Cyclization of α,β-Unsaturated Amides: an Efficient Approach to Quaternary Oxindoles. Angew Chem Int Ed Engl 2016; 55:7756-60. [DOI: 10.1002/anie.201603809] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Promita Biswas
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
| | - Subhasis Paul
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
| | - Joyram Guin
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
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50
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Biswas P, Paul S, Guin J. Aerobic Radical-Cascade Alkylation/Cyclization of α,β-Unsaturated Amides: an Efficient Approach to Quaternary Oxindoles. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603809] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Promita Biswas
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
| | - Subhasis Paul
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
| | - Joyram Guin
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
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