1
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One-pot synthesis of cyclobutenecarboxylate derivatives via olefinic C-F bond functionalization of gem-difluoroalkenes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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2
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Baudillon M, Cauchy T, Vanthuyne N, Avarvari N, Pop F. Configurationally stable dithia[7]helicene and dithia-quasi[8]circulene fused dithiolones. Org Chem Front 2022. [DOI: 10.1039/d2qo00921h] [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
Stereochemically stable dithia[7]helicene and dithia-quasi[8]circulene decorated with 1,3-dithiol-2-one motifs were synthesized by simple and double oxidative dehydrocyclisation.
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Affiliation(s)
- Maxime Baudillon
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
| | - Thomas Cauchy
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Narcis Avarvari
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
| | - Flavia Pop
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
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3
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Nakada M, Hosoya Y, Yasukochi H, Mizoguchi K. Preparation of 2,3-Dihydrobenzo[b]thiophene Bearing Benzylic Quaternary Carbon by Palladium-Catalyzed Cascade Reaction. HETEROCYCLES 2022. [DOI: 10.3987/com-21-14611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Kumaran S, Parthasarathy K. Rh(III)-Catalyzed Oxidative C-2 Coupling of N-Pyridinylindoles with Benzo[ b]thiophene 1,1-Dioxides via C-H Bond Activation. J Org Chem 2021; 86:7987-7999. [PMID: 34096307 DOI: 10.1021/acs.joc.1c00301] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient Rh(III)-catalyzed cross-dehydrogenative coupling of N-pyridinylindoles with benzo[b]thiophene 1,1-dioxides has been developed through directing-group-assisted C-H activation. This transformation constructs a new C-C bond from two inert C-H bonds in a one-pot reaction. The present reaction is compatible with various functional groups with respect to indoles and benzothiophene[b] 1,1-dioxides. Furthermore, the emission properties of synthesized compounds have been explored.
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Affiliation(s)
- Subramani Kumaran
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, Tamilnadu 600025, India
| | - Kanniyappan Parthasarathy
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, Tamilnadu 600025, India
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5
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Toyota K, Mikami S. Iodine-Containing 4,7-Dihalobenzo[b]thiophene Building Blocks and Related Iodobenzo[b]thiophenes: Promising Molecular Scaffolds for Bio-Inspired Molecular Architecture. HETEROCYCLES 2021. [DOI: 10.3987/rev-20-950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Efficient synthesis of 2,3-diarylbenzo[b]thiophene molecules through palladium (0) Suzuki–Miyaura cross-coupling reaction and their antithrombolyitc, biofilm inhibition, hemolytic potential and molecular docking studies. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02568-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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7
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Zou S, Liu Y, Xi C. Concise and Efficient Synthesis of Indole-Indolone Scaffolds through MeOTf-Induced Annulation of N-(2-Cyanoaryl)indoles. ACS OMEGA 2019; 4:18734-18740. [PMID: 31737835 PMCID: PMC6854827 DOI: 10.1021/acsomega.9b02679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
MeOTf-triggered annulation of N-(2-cyanoaryl)indoles to provide indolo[1,2-a]indol-10-imines and the corresponding indolo[1,2-a]indol-10-ones have been described under metal-free conditions. A variety of functional groups are tolerated in their scaffolds with good to excellent yields. The reaction could be carried to gram scale.
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Affiliation(s)
- Song Zou
- MOE
Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology,
Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu Liu
- Naval
Logistics Academy, Tianjin 300450, China
| | - Chanjuan Xi
- MOE
Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology,
Department of Chemistry, Tsinghua University, Beijing 100084, China
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8
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Liu G, Zhang H, Huang Y, Han Z, Liu G, Liu Y, Dong XQ, Zhang X. Efficient synthesis of chiral 2,3-dihydro-benzo[ b]thiophene 1,1-dioxides via Rh-catalyzed hydrogenation. Chem Sci 2019; 10:2507-2512. [PMID: 30881681 PMCID: PMC6385876 DOI: 10.1039/c8sc05397a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/23/2018] [Indexed: 12/30/2022] Open
Abstract
Rh-catalyzed asymmetric hydrogenation of prochiral substituted benzo[b]thiophene 1,1-dioxides was successfully developed, affording various chiral 2,3-dihydrobenzo[b]thiophene 1,1-dioxides with high yields and excellent enantioselectivities (up to 99% yield and >99% ee). In particular, for challenging substrates, such as aryl substituted substrates with sterically hindered groups and alkyl substituted substrates, the reaction proceeded smoothly in our catalytic system with excellent results. The gram-scale asymmetric hydrogenation proceeded well with 99% yield and 99% ee in the presence of 0.02 mol% (S/C = 5000) catalyst loading. The possible hydrogen-bonding interaction between the substrate and the ligand may play an important role in achieving high reactivity and excellent enantioselectivity.
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Affiliation(s)
- Gongyi Liu
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Heng Zhang
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Yi Huang
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Zhengyu Han
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Gang Liu
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Yuanhua Liu
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Xiu-Qin Dong
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China . .,Department of Chemistry , Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China .
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9
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Battini L, Bollini M. Challenges and approaches in the discovery of human immunodeficiency virus type‐1 non‐nucleoside reverse transcriptase inhibitors. Med Res Rev 2018; 39:1235-1273. [DOI: 10.1002/med.21544] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/04/2018] [Accepted: 10/04/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Leandro Battini
- Laboratorio de Química Medicinal, Centro de Investigaciones en Bionanociencias (CIBION), CONICETCiudad de Buenos Aires Argentina
| | - Mariela Bollini
- Laboratorio de Química Medicinal, Centro de Investigaciones en Bionanociencias (CIBION), CONICETCiudad de Buenos Aires Argentina
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10
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Yue DF, Zhao JQ, Chen YZ, Zhang XM, Xu XY, Yuan WC. Zinc-Catalyzed Enantioselective Dearomative [3+2] Cycloaddition Reaction of 3-Nitrobenzothiophenes and 3-Nitrothieno[2,3-b]yridine with 3-Isothiocyanato Oxindoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701557] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Deng-Feng Yue
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Jian-Qiang Zhao
- Institute for Advanced Study; Chengdu University; Chengdu 610106 People's Republic of China
| | - Yong-Zheng Chen
- School of Pharmacy; Zunyi Medical University; Zunyi 563000 People's Republic of China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 People's Republic of China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 People's Republic of China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 People's Republic of China
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11
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Keri RS, Chand K, Budagumpi S, Balappa Somappa S, Patil SA, Nagaraja BM. An overview of benzo[b]thiophene-based medicinal chemistry. Eur J Med Chem 2017; 138:1002-1033. [PMID: 28759875 DOI: 10.1016/j.ejmech.2017.07.038] [Citation(s) in RCA: 170] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 05/15/2017] [Accepted: 07/20/2017] [Indexed: 01/16/2023]
Abstract
Among sulfur containing heterocycles, benzothiophene and its derivatives are at the focus as these candidates have structural similarities with active compounds to develop new potent lead molecules in drug design. Benzo[b]thiophene scaffold is one of the privileged structures in drug discovery as this core exhibits various biological activities allowing them to act as anti-microbial, anti-cancer, anti-inflammatory, anti-oxidant, anti-tubercular, anti-diabetic, anti-convulsant agents and many more. Further, numerous benzothiophene-based compounds as clinical drugs have been extensively used to treat various types of diseases with high therapeutic potency, which has led to their extensive developments. Due to the wide range of biological activities of benzothiophene, their structure activity relationships (SAR) have generated interest among medicinal chemists, and this has culminated in the discovery of several lead molecules against numerous diseases. The present review is endeavoring to highlight the progress in the various pharmacological activities of benzo[b]thiophene derivatives. It is hoped that this review will be helpful for new thoughts in the quest for rational designs of more active and less toxic benzothiophene-based medicinal drugs, as well as more effective diagnostic agents and pathologic probes. Also, SAR studies that highlight the chemical groups responsible for evoking the potential activities of benzothiophene derivatives are studied and compared.
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Affiliation(s)
- Rangappa S Keri
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore 562112, India.
| | - Karam Chand
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Srinivasa Budagumpi
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore 562112, India
| | - Sasidhar Balappa Somappa
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India; Organic Chemistry Section, Chemical Sciences and Technology Division, Council of Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, India
| | - Siddappa A Patil
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore 562112, India
| | - Bhari Mallanna Nagaraja
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore 562112, India
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12
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Ou YP, Zhang J, Kuang D, Zhang F, Yu J, Zhu X, Liu SH, Hartl F. Mononuclear piano-stool iron 2-ethynylbenzo[ b]thiophene complex: crystal structure and reversible oxidation studied by spectro-electrochemical and DFT methods. J COORD CHEM 2017. [DOI: 10.1080/00958972.2016.1278434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ya-Ping Ou
- College of Chemistry and Material Science, Hengyang Normal University, Hengyang, People’s Republic of China
- Key Laboratory of Functional Organometallic Materials, College of Hunan Province, Hengyang Normal University, Hengyang, People’s Republic of China
| | - Jing Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, People’s Republic of China
| | - Daizhi Kuang
- College of Chemistry and Material Science, Hengyang Normal University, Hengyang, People’s Republic of China
- Key Laboratory of Functional Organometallic Materials, College of Hunan Province, Hengyang Normal University, Hengyang, People’s Republic of China
| | - Fuxing Zhang
- College of Chemistry and Material Science, Hengyang Normal University, Hengyang, People’s Republic of China
- Key Laboratory of Functional Organometallic Materials, College of Hunan Province, Hengyang Normal University, Hengyang, People’s Republic of China
| | - Jiangxi Yu
- College of Chemistry and Material Science, Hengyang Normal University, Hengyang, People’s Republic of China
- Key Laboratory of Functional Organometallic Materials, College of Hunan Province, Hengyang Normal University, Hengyang, People’s Republic of China
| | - Xiaoming Zhu
- College of Chemistry and Material Science, Hengyang Normal University, Hengyang, People’s Republic of China
- Key Laboratory of Functional Organometallic Materials, College of Hunan Province, Hengyang Normal University, Hengyang, People’s Republic of China
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, People’s Republic of China
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13
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Zhang L, Wang Y, Zheng L, Guo B, Hua R. Synthesis of fused polycyclic indoles via Cu(II)-catalyzed intramolecular cyclization of N-(2-cyanophenyl)indoles in the presence of diaryliodonium salts. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Deng H, He FS, Li CS, Yang WL, Deng WP. Enantioselective construction of tricyclic pyrrolidine-fused benzo[b]thiophene 1,1-dioxide derivatives via copper(i)-catalyzed asymmetric 1,3-dipolar cycloaddition. Org Chem Front 2017. [DOI: 10.1039/c7qo00640c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile Cu(i)-catalyzed asymmetric 1,3-dipolar cycloaddition is developed, affording chiral tricyclic pyrrolidine-fused benzo[b]thiophene derivatives in excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Hua Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Fu-Sheng He
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Cong-Shan Li
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Wu-Lin Yang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
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15
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Scheller PN, Nestl BM. The biochemical characterization of three imine-reducing enzymes from Streptosporangium roseum DSM43021, Streptomyces turgidiscabies and Paenibacillus elgii. Appl Microbiol Biotechnol 2016; 100:10509-10520. [DOI: 10.1007/s00253-016-7740-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/08/2016] [Accepted: 07/13/2016] [Indexed: 11/28/2022]
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16
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Bhambra AS, Edgar M, Elsegood MR, Li Y, Weaver GW, Arroo RR, Yardley V, Burrell-Saward H, Krystof V. Design, synthesis and antitrypanosomal activities of 2,6-disubstituted-4,5,7-trifluorobenzothiophenes. Eur J Med Chem 2016; 108:347-353. [DOI: 10.1016/j.ejmech.2015.11.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 11/16/2022]
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17
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Hou C, He Q, Yang C. Direct Synthesis of Diverse 2-Aminobenzo[b]thiophenes via Palladium-Catalyzed Carbon–Sulfur Bond Formation Using Na2S2O3 as the Sulfur Source. Org Lett 2014; 16:5040-3. [DOI: 10.1021/ol502381e] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Chuanwei Hou
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Qian He
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Chunhao Yang
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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18
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Zhou ZX, Gao F, Chen X, Tian XJ, Ji LN. Selective binding and reverse transcription inhibition of single-strand poly(A) RNA by metal TMPyP complexes. Inorg Chem 2014; 53:10015-7. [PMID: 25203754 DOI: 10.1021/ic501337c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Ni-, Cu-, and Zn-TMPyP are capable of binding to single-strand poly(A) RNA with high preference and affinity and inhibiting the reverse transcription of RNA by both M-MuLV and HIV-1 reverse transcriptase. With 10 nM azidothymidine, the IC50 value of M-TMPyP could be lowered to 10(-1) μM order.
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Affiliation(s)
- Zhu-Xin Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, P. R. China
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19
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Scheller PN, Fademrecht S, Hofelzer S, Pleiss J, Leipold F, Turner NJ, Nestl BM, Hauer B. Enzyme toolbox: novel enantiocomplementary imine reductases. Chembiochem 2014; 15:2201-4. [PMID: 25163890 DOI: 10.1002/cbic.201402213] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Indexed: 11/08/2022]
Abstract
Reducing reactions are among the most useful transformations for the generation of chiral compounds in the fine-chemical industry. Because of their exquisite selectivities, enzymatic approaches have emerged as the method of choice for the reduction of C=O and activated C=C bonds. However, stereoselective enzymatic reduction of C=N bonds is still in its infancy-it was only recently described after the discovery of enzymes capable of imine reduction. In our work, we increased the spectrum of imine-reducing enzymes by database analysis. By combining the currently available knowledge about the function of imine reductases with the experimentally uncharacterized diversity stored in protein sequence databases, three novel imine reductases with complementary enantiopreference were identified along with amino acids important for catalysis. Furthermore, their reducing capability was demonstrated by the reduction of the pharmaceutically relevant prochiral imine 2-methylpyrroline. These novel enzymes exhibited comparable to higher catalytic efficiencies than previously described enzymes, and their biosynthetic potential is highlighted by the full conversion of 2-methylpyrroline in whole cells with excellent selectivities.
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Affiliation(s)
- Philipp N Scheller
- Institute of Technical Biochemistry, University of Stuttgart, Allmandring 31, 70569 Stuttgart (Germany)
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20
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Li P, Ji Y, Chen W, Zhang X, Wang L. The facile synthesis of 2-bromoindoles via Cs2CO3-promoted intramolecular cyclization of 2-(gem-dibromovinyl)anilines under transition-metal-free conditions. RSC Adv 2013. [DOI: 10.1039/c2ra22172a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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21
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Enantioselective organocatalyzed functionalization of benzothiophene and thiophenecarbaldehyde derivatives. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.04.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Chiral resolution, absolute configuration assignment and biological activity of racemic diarylpyrimidine CH(OH)-DAPY as potent nonnucleoside HIV-1 reverse transcriptase inhibitors. Eur J Med Chem 2012; 53:229-34. [PMID: 22575532 DOI: 10.1016/j.ejmech.2012.04.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Revised: 03/30/2012] [Accepted: 04/04/2012] [Indexed: 11/20/2022]
Abstract
(+)-3a and (-)-3a were successfully separated from racemate (±)-3a by the chiral technique of supercritical fluid chromatography (SCF) with enantiomeric excess (ee%) >99% and purity >99%, and assigned for their absolute configuration as R and S, respectively, by the experimental electronic circular dichroism (ECD) spectrum and simulated ECD spectra calculated by time-dependent density functional theory (TDDFT) calculations. (+)-(R)-3a displayed excellent activity with an EC(50) of 5.3 nM against wild-type HIV-1, which was 12-fold more potent than (-)-(S)-3a. However, (-)-(S)-3a showed higher potency than (+)-(R)-3a against the double HIV-1 RT mutant (K103N+Y181C) as well as HIV-2 strain ROD. The possible reason for the difference of (R)- and (S)-3a in anti-HIV-1 activity was interpreted by molecular docking.
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23
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Zhan P, Chen X, Li D, Fang Z, De Clercq E, Liu X. HIV-1 NNRTIs: structural diversity, pharmacophore similarity, and implications for drug design. Med Res Rev 2011; 33 Suppl 1:E1-72. [PMID: 21523792 DOI: 10.1002/med.20241] [Citation(s) in RCA: 153] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nonnucleoside reverse transcriptase inhibitors (NNRTIs) nowadays represent very potent and most promising anti-AIDS agents that specifically target the HIV-1 reverse transcriptase (RT). However, the effectiveness of NNRTI drugs can be hampered by rapid emergence of drug-resistant viruses and severe side effects upon long-term use. Therefore, there is an urgent need to develop novel, highly potent NNRTIs with broad spectrum antiviral activity and improved pharmacokinetic properties, and more efficient strategies that facilitate and shorten the drug discovery process would be extremely beneficial. Fortunately, the structural diversity of NNRTIs provided a wide space for novel lead discovery, and the pharmacophore similarity of NNRTIs gave valuable hints for lead discovery and optimization. More importantly, with the continued efforts in the development of computational tools and increased crystallographic information on RT/NNRTI complexes, structure-based approaches using a combination of traditional medicinal chemistry, structural biology, and computational chemistry are being used increasingly in the design of NNRTIs. First, this review covers two decades of research and development for various NNRTI families based on their chemical scaffolds, and then describes the structural similarity of NNRTIs. We have attempted to assemble a comprehensive overview of the general approaches in NNRTI lead discovery and optimization reported in the literature during the last decade. The successful applications of medicinal chemistry strategies, crystallography, and computational tools for designing novel NNRTIs are highlighted. Future directions for research are also outlined.
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Affiliation(s)
- Peng Zhan
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, PR China
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Bencze LC, Paizs C, Toşa MI, Vass E, Irimie FD. Synthesis of enantiomerically enriched (R)- and (S)-benzofuranyl- and benzo[b]thiophenyl-1,2-ethanediols via enantiopure cyanohydrins as intermediates. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.01.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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