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Asymmetric synthesis of intermediate for (1R,2S)-ethyl 1-amino-2-vinylcyclopropanecarboxylate by desymmetrization using engineered esterase from Bacillus subtilis

J Biosci Bioeng. 2021-03; 
Hiroshi Kawabata, Ryoma Miyake, Kuniko Asada, Yasumasa Dekishima, Mitsuko Miyaike, Ryohei Kato
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摘要

(1R,2S)-Ethyl 1-amino-2-vinylcyclopropanecarboxylate (VCPA), is a key intermediate for anti-hepatitis C virus drugs. In this study, we developed an efficient manufacturing method of intermediate for (1R,2S)-VCPA by enzymatic desymmetrization of a malonate diester derivative. In synthesis scheme of VCPA (1S,2S)-1-(ethoxycarbonyl)-2-vinylcyclopropanecarboxylic acid (VCPME) is the monoester intermediate, which is converted from 2-vinylcyclopropane-1,1-dicarboxylate diethyl ester (VCPDE). As a result of esterase screening for producing (1S,2S)-VCPME from VCPDE by enzymatic desymmetrization, p-nitrobenzyl esterase from Bacillus subtilis NBRC3027 (PNBE3027) showed high enantioselectivity (more than 90% e.e.). Based o... More

关键词

(1R,2S)-Ethyl 1-amino-2-vinylcyclopropanecarboxylate, (1S,2S)-1-(Ethoxycarbonyl)-2-vinylcyclopropanecarboxylic acid, Desymmetrization, Homology model, p-Nitrobenzyl esterase
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