1
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Goswami G, Singh B, Wani IA, Mal A, Ghorai MK. A Synthetic Route to Tetrahydro-1 H-azepino[4,3,2- cd]indoles via Ring-Opening Cyclization of Activated Azetidines with 4-Bromoindole: Toward a Vasopressin V2 Receptor Antagonist. J Org Chem 2024; 89:11576-11587. [PMID: 39102588 DOI: 10.1021/acs.joc.4c01270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
A simple one-pot, two-step strategy for the synthesis of tetrahydro-1H-azepino[4,3,2-cd]indoles via Lewis acid-catalyzed SN2-type ring opening of activated azetidines with 4-bromoindole, followed by a Pd-catalyzed intramolecular C-N cyclization reaction, with good to excellent yields is described. Utilizing this protocol, the vasopressin V2 receptor antagonist precursor has been synthesized easily. Enantioenriched tetrahydro-1H-azepino[4,3,2-cd]indoles were obtained by starting from enantiopure azetidine.
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Affiliation(s)
- Gaurav Goswami
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Bharat Singh
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Imtiyaz Ahmad Wani
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Abhijit Mal
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Manas K Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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2
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Malarney KP, Kc S, Schmidt VA. Recent strategies used in the synthesis of saturated four-membered heterocycles. Org Biomol Chem 2021; 19:8425-8441. [PMID: 34546272 DOI: 10.1039/d1ob00988e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The importance and prevalance of O-, N-, and S-atom containing saturated four-membered ring motifs in biologically active molecules and potential therapeutics continues to drive efforts in their efficient synthetic preparation. In this review, general and recent strategies for the synthesis of these heterocycles are presented. Due to the limited potential bond disconnections, retrosynthetic strategies are broadly limited to cyclizations and cycloadditions. Nonetheless, diverse approaches for accessing cyclization precursors have been developed, ranging from nucleophilic substitution to C-H functionalization. Innovative methods for substrate activation have been developed for cycloadditions under photochemical and thermal conditions. Advances in accessing oxetanes, azetidines, and thietanes remain active areas of research with continued breakthroughs anticipated to enable future applications.
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Affiliation(s)
- Kien P Malarney
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
| | - Shekhar Kc
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
| | - Valerie A Schmidt
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
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3
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Mitasev B, Yang J, Gusovsky F, Girish D, Khile AS, Balla VS, Vikram V, Vaddi A, Bathula S, Sugandham SR, Terli C, Kalla V, Rayaprolu PK, Talabhakthula RK, Gotoda M, Melillo B, Schreiber SL, Fang FG. Crystallization-Based Synthetic Route to Antimalarial Agent BRD5018: Diazocene Ring Formation via a Staudinger-aza-Wittig Reaction on an Azetidine-Ribose Template. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Branko Mitasev
- G2D2 Eisai Inc., 35 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Jiong Yang
- G2D2 Eisai Inc., 35 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Fabian Gusovsky
- G2D2 Eisai Inc., 35 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Dixit Girish
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Anil Shahaji Khile
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Venkata Sasidhar Balla
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Venugopalarao Vikram
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Anand Vaddi
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Srikanth Bathula
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Srinivasa Rao Sugandham
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Chiranjeevi Terli
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Vijay Kalla
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Pavan Kumar Rayaprolu
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Ravi Kumar Talabhakthula
- Eisai Pharmaceuticals India Pvt. Ltd., Ramky Pharma City, (SEZ), Plot Nos. 96, 97, 98, 124, &126, Parawada, Visakhapatnam, Andhra Pradesh 531019, India
| | - Masaharu Gotoda
- Analytical Research Japan, Pharmaceutical Science & Technology, Medicine Development Center, Eisai Co. Ltd., 5-1-3-Tokodai, Tsukuba-shi, Ibaraki 300-2635, Japan
| | - Bruno Melillo
- Chemical Biology and Therapeutics Science Program, Broad Institute of Harvard and MIT, 415 Main Street, Cambridge, Massachusetts 02142, United States
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Stuart L. Schreiber
- Chemical Biology and Therapeutics Science Program, Broad Institute of Harvard and MIT, 415 Main Street, Cambridge, Massachusetts 02142, United States
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Francis G. Fang
- G2D2 Eisai Inc., 35 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
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4
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Liu G, Zhang X, Wang H, Cong H, Zhang X, Dong XQ. Synthesis of chiral α-substituted α-amino acid and amine derivatives through Ni-catalyzed asymmetric hydrogenation. Chem Commun (Camb) 2020; 56:4934-4937. [PMID: 32239044 DOI: 10.1039/d0cc01220c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Highly efficient Ni-catalyzed asymmetric hydrogenation of cyclic N-sulfonyl ketimino esters was, for the first time, successfully developed, providing various chiral α-monosubstituted α-amino acid derivatives with excellent results (97-99% yields, 90 to >99% ee). Cyclic N-sulfonyl ketimines were also hydrogenated well to afford chiral amine derivatives with 98-99% yields and 97 to >99% ee. The gram-scale asymmetric hydrogenation was performed well with 85% yield and 99% ee using only 0.2 mol% catalyst.
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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, Suzhou Institute of Wuhan University, Wuhan University, Wuhan, Hubei 430072, P. R. China.
| | - Xianghe Zhang
- Key Laboratory of Biomedical Polymers, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Suzhou Institute of Wuhan University, Wuhan University, Wuhan, Hubei 430072, P. R. China.
| | - Heng Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. China.
| | - Hengjiang Cong
- Key Laboratory of Biomedical Polymers, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Suzhou Institute of Wuhan University, 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, Suzhou Institute of Wuhan University, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, 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, Suzhou Institute of Wuhan University, Wuhan University, Wuhan, Hubei 430072, P. R. China.
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5
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Talukdar R. BF3·OEt2 catalyzed base-free regiospecific ring opening of N-activated azetidines with (E)-1-arylidene-2-arylhydrazines. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-018-1489-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Yang S, Wang L, Zhang H, Liu C, Zhang L, Wang X, Zhang G, Li Y, Zhang Q. Copper-Catalyzed Asymmetric Aminocyanation of Arylcyclopropanes for Synthesis of γ-Amino Nitriles. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03768] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shengbiao Yang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Lihong Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Hongwei Zhang
- College of Science, China University of Petroleum (East China), Qingdao 266580, China
| | - Chunyang Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Linli Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xiaomin Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ge Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yan Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
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7
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Dowling MS, Fernando DP, Hou J, Liu B, Smith AC. Two Scalable Syntheses of (S)-2-Methylazetidine. J Org Chem 2016; 81:3031-6. [PMID: 26895201 DOI: 10.1021/acs.joc.6b00149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Two orthogonal routes for preparing (S)-2-methylazetidine as a bench stable, crystalline (R)-(-)-CSA salt are presented. One route features the in situ generation and cyclization of a 1,3-bis-triflate to form the azetidine ring, while the second route involves chemoselective reduction of N-Boc azetidine-2-carboxylic acid. Both sequences afford the desired product in good overall yields (61% and 49%) and high enantiomeric excess (>99% ee), avoid column chromatography, and are suitable for the large-scale production of this material.
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Affiliation(s)
- Matthew S Dowling
- Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Dilinie P Fernando
- Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jie Hou
- WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai 200131, China
| | - Bo Liu
- WuXi AppTec, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai 200131, China
| | - Aaron C Smith
- Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
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8
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Ghorai MK, Das S, Das K, Kumar A. Stereoselective synthesis of activated 2-arylazetidines via imino-aldol reaction. Org Biomol Chem 2015. [DOI: 10.1039/c5ob01140j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A highly stereoselective synthesis ofN-sulfinyl andN-sulfonyl azetidines have been developed involving imino-aldol reaction of ester enolates with aldimines.
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Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Subhomoy Das
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Kalpataru Das
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Amit Kumar
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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9
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Parshikov IA, Silva EO, Furtado NAJC. Transformation of saturated nitrogen-containing heterocyclic compounds by microorganisms. Appl Microbiol Biotechnol 2013; 98:1497-506. [PMID: 24352731 DOI: 10.1007/s00253-013-5429-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/20/2013] [Accepted: 11/21/2013] [Indexed: 11/25/2022]
Abstract
The saturated nitrogen-containing heterocyclic compounds include many drugs and compounds that may be used as synthons for the synthesis of other pharmacologically active substances. The need for new derivatives of saturated nitrogen-containing heterocycles for organic synthesis, biotechnology and the pharmaceutical industry, including optically active derivatives, has increased interest in microbial synthesis. This review provides an overview of microbial technologies that can be valuable to produce new derivatives of saturated nitrogen-containing heterocycles, including hydroxylated derivatives. The chemo-, regio- and enantioselectivity of microbial processes can be indispensable for the synthesis of new compounds. Microbial processes carried out with fungi, including Beauveria bassiana, Cunninghamella verticillata, Penicillium simplicissimum, Aspergillus niger and Saccharomyces cerevisiae, and bacteria, including Pseudomonas sp., Sphingomonas sp. and Rhodococcus erythropolis, biotransform many substrates efficiently. Among the biological activities of saturated nitrogen-containing heterocyclic compounds are antimicrobial, antitumor, antihypertensive and anti-HIV activities; some derivatives are effective for the treatment and prevention of malaria and trypanosomiasis, and others are potent glycosidase inhibitors.
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Affiliation(s)
- Igor A Parshikov
- Institute of Applied Mechanics, Russian Academy of Sciences, Moscow, 119991, Russia,
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10
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Biswas T, Mukherjee JP, Chattopadhyay SK. Enantiodivergent synthesis of N-protected azetidine-2-carboxylic acid. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.08.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Mangelinckx S, De Sterck B, Colpaert F, Catak S, Jacobs J, Rooryck S, Waroquier M, Van Speybroeck V, De Kimpe N. Diastereoselective Aldol Reaction of Zincated 3-Chloro-3-methyl-1-azaallylic Anions as Key Step in the Synthesis of 1,2,3,4-Tetrasubstituted 3-Chloroazetidines. J Org Chem 2012; 77:3415-25. [DOI: 10.1021/jo300203t] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sven Mangelinckx
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Bart De Sterck
- Center for Molecular Modeling,
Ghent University, Technologiepark 903, B-9052 Zwijnaarde, Belgium,
Member of QCMM Alliance Ghent-Brussels
| | - Filip Colpaert
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Saron Catak
- Center for Molecular Modeling,
Ghent University, Technologiepark 903, B-9052 Zwijnaarde, Belgium,
Member of QCMM Alliance Ghent-Brussels
| | - Jan Jacobs
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Stijn Rooryck
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Michel Waroquier
- Center for Molecular Modeling,
Ghent University, Technologiepark 903, B-9052 Zwijnaarde, Belgium,
Member of QCMM Alliance Ghent-Brussels
| | - Veronique Van Speybroeck
- Center for Molecular Modeling,
Ghent University, Technologiepark 903, B-9052 Zwijnaarde, Belgium,
Member of QCMM Alliance Ghent-Brussels
| | - Norbert De Kimpe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent
University, Coupure Links 653, B-9000 Ghent, Belgium
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12
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Narhe BD, Sriramurthy V, Yadav VK. A smooth rearrangement of N-p-toluenesulfonyl 2-tert-butyldiphenylsilylmethyl-substituted azetidines into N-p-toluenesulfonyl 3-tert-butyldiphenylsilyl-substituted pyrrolidines. Org Biomol Chem 2012; 10:4390-9. [DOI: 10.1039/c2ob07140a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Pradhan TK, Krishnan KS, Vasse JL, Szymoniak J. Access to Enantiomerically Enriched cis-2,3-Disubstituted Azetidines via Diastereoselective Hydrozirconation. Org Lett 2011; 13:1793-5. [DOI: 10.1021/ol200323r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Tarun K. Pradhan
- Institut de Chimie Moléculaire de Reims, CNRS (UMR 6229) and Université de Reims, 51687 Reims Cedex 2, France
| | - K. Syam Krishnan
- Institut de Chimie Moléculaire de Reims, CNRS (UMR 6229) and Université de Reims, 51687 Reims Cedex 2, France
| | - Jean-Luc Vasse
- Institut de Chimie Moléculaire de Reims, CNRS (UMR 6229) and Université de Reims, 51687 Reims Cedex 2, France
| | - Jan Szymoniak
- Institut de Chimie Moléculaire de Reims, CNRS (UMR 6229) and Université de Reims, 51687 Reims Cedex 2, France
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14
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Mallakpour S, Barati A. Preparation and characterization of novel optically active poly(vinyl alcohol-co-vinyl ester) in nonaqueous medium using l-phenylalanine as a chiral material. Amino Acids 2011; 42:1287-95. [DOI: 10.1007/s00726-010-0823-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2010] [Accepted: 12/04/2010] [Indexed: 11/28/2022]
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15
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Mangelinckx S, Nural Y, Dondas HA, Denolf B, Sillanpää R, De Kimpe N. Diastereoselective synthesis of 6-functionalized 4-aryl-1,3-oxazinan-2-ones and their application in the synthesis of 3-aryl-1,3-aminoalcohols and 6-arylpiperidine-2,4-diones. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.03.113] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Malik S, Nadir UK, Pandey PS. Microwave-Assisted Regioselective Synthesis of trans-1-Arenesulfonyl-2-ethoxycarbonyl-3-phenylazetidines. SYNTHETIC COMMUN 2010. [DOI: 10.1080/00397910903136100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sarika Malik
- a Department of Chemistry , Indian Institute of Technology , Delhi, New Delhi, India
| | - Upender K. Nadir
- a Department of Chemistry , Indian Institute of Technology , Delhi, New Delhi, India
| | - Pramod S. Pandey
- a Department of Chemistry , Indian Institute of Technology , Delhi, New Delhi, India
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17
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Ma M, Hou G, Sun T, Zhang X, Li W, Wang J, Zhang X. Highly Efficient RhI-Catalyzed Asymmetric Hydrogenation of β-Amino Acrylonitriles. Chemistry 2010; 16:5301-4. [DOI: 10.1002/chem.201000325] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Tasnádi G, Forró E, Fülöp F. Improved enzymatic syntheses of valuable β-arylalkyl-β-amino acid enantiomers. Org Biomol Chem 2010; 8:793-9. [PMID: 20135036 DOI: 10.1039/b920731g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Gábor Tasnádi
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary
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19
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Das B, Balasubramanyam P, Veeranjaneyulu B, Chinna Reddy G. Simple and Efficient Access to N-Tosyl β-Amino Ketones and Their Conversion into 2,4-Disubstituted Azetidines. J Org Chem 2009; 74:9505-8. [DOI: 10.1021/jo901982n] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Biswanath Das
- Organic Chemistry Division-1, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | | | - Boyapati Veeranjaneyulu
- Organic Chemistry Division-1, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Gandolla Chinna Reddy
- Organic Chemistry Division-1, Indian Institute of Chemical Technology, Hyderabad 500 007, India
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20
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Ghorai MK, Shukla D, Das K. Enantioselective Syntheses of Morpholines and Their Homologues via SN2-Type Ring Opening of Aziridines and Azetidines with Haloalcohols. J Org Chem 2009; 74:7013-22. [DOI: 10.1021/jo901297d] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Dipti Shukla
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Kalpataru Das
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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21
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Jiang X, Cui L, Wang H, Xu K, Zhou C, Li J. Synthesis and electrostatic assembly of an optically active derivative of poly(ethylene-alt-maleic anhydride) with l-phenylalanine as a chiral material. REACT FUNCT POLYM 2009. [DOI: 10.1016/j.reactfunctpolym.2009.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Novel synthesis of 3-aminopropionitriles by ring opening of 2-oxazolidinones with cyanide ion. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.06.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Stereoselective synthesis of 2-azetidinylglycine and aminopyrrolidone derivatives from Garner’s aldehyde. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.04.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Synthesis and biological evaluation of reversible inhibitors of IdeS, a bacterial cysteine protease and virulence determinant. Bioorg Med Chem 2009; 17:3463-70. [PMID: 19362485 DOI: 10.1016/j.bmc.2009.03.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 01/23/2009] [Accepted: 03/13/2009] [Indexed: 12/30/2022]
Abstract
Analogues of the irreversible protease inhibitors TPCK and TLCK have been synthesized and tested as inhibitors of the bacterial cysteine protease IdeS excreted by Streptococcuspyogenes. Eight compounds were identified as inhibitors of IdeS in an in vitro assay. The most potent compounds contained an aldehyde function, thus acting as efficient reversible inhibitors, nitrile and azide derivatives showed moderate activity.
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25
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Ghorai MK, Das K, Kumar A. An efficient synthetic route to substituted tetrahydropyrimidines by Cu(OTf)2-mediated nucleophilic ring-opening followed by the [4+2] cycloaddition of N-tosylazetidines with nitriles. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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26
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Masterson DS, Roy K, Rosado DA, Fouche M. A divergent approach to the preparation of cysteine and serine analogs. J Pept Sci 2008; 14:1151-62. [DOI: 10.1002/psc.1052] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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27
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Meng LG, Cai P, Guo Q, Xue S. Cycloaddition of Alkynyl Ketones with N-Tosylimines Catalyzed by Bu3P and DMAP: Synthesis of Highly Functionalized Pyrrolidines and Azetidines. J Org Chem 2008; 73:8491-6. [DOI: 10.1021/jo801687v] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ling-Guo Meng
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, Peopleʼs Republic of China, and Department of Applied Chemistry, Tianjin University of Technology, Tianjin 300384, Peopleʼs Republic of China
| | - Peijie Cai
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, Peopleʼs Republic of China, and Department of Applied Chemistry, Tianjin University of Technology, Tianjin 300384, Peopleʼs Republic of China
| | - Qingxiang Guo
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, Peopleʼs Republic of China, and Department of Applied Chemistry, Tianjin University of Technology, Tianjin 300384, Peopleʼs Republic of China
| | - Song Xue
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, Peopleʼs Republic of China, and Department of Applied Chemistry, Tianjin University of Technology, Tianjin 300384, Peopleʼs Republic of China
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28
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Brandi A, Cicchi S, Cordero FM. Novel Syntheses of Azetidines and Azetidinones. Chem Rev 2008; 108:3988-4035. [DOI: 10.1021/cr800325e] [Citation(s) in RCA: 395] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Alberto Brandi
- Dipartimento di Chimica Organica “Ugo Schiff”, Laboratorio di Progettazione, Sintesi e Studio di Eterocicli Biologicamente Attivi - HeteroBioLab, Università degli Studi di Firenze, via della Lastruccia 13, 50019 Sesto F.no (FI), Italy
| | - Stefano Cicchi
- Dipartimento di Chimica Organica “Ugo Schiff”, Laboratorio di Progettazione, Sintesi e Studio di Eterocicli Biologicamente Attivi - HeteroBioLab, Università degli Studi di Firenze, via della Lastruccia 13, 50019 Sesto F.no (FI), Italy
| | - Franca M. Cordero
- Dipartimento di Chimica Organica “Ugo Schiff”, Laboratorio di Progettazione, Sintesi e Studio di Eterocicli Biologicamente Attivi - HeteroBioLab, Università degli Studi di Firenze, via della Lastruccia 13, 50019 Sesto F.no (FI), Italy
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29
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Ghorai MK, Kumar A, Das K. Lewis acid-mediated unprecedented ring-opening rearrangement of 2-aryl-N-tosylazetidines to enantiopure (E)-allylamines. Org Lett 2007; 9:5441-4. [PMID: 18020346 DOI: 10.1021/ol7023218] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly efficient strategy for Cu(OTf)2-mediated ring-opening of 2-aryl-N-tosylazetidines in polar and coordinating solvents followed by an unprecedented rearrangement to substituted achiral and chiral (E)-allylamines (ee >99%) is reported. The methodology has been applied for the synthesis of gamma-unsaturated-beta-amino acids. A plausible mechanism for the rearrangement is also described.
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Affiliation(s)
- Manas K Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India.
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30
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Ghorai MK, Das K, Kumar A. Lewis acid mediated SN2-type nucleophilic ring opening followed by [4+2] cycloaddition of N-tosylazetidines with aldehydes and ketones: synthesis of chiral 1,3-oxazinanes and 1,3-amino alcohols. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.04.097] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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