The Specificity of the Nucleophilic Site of α-Chymotrypsin and its Potential for the Resolution of Alcohols. Enzyme-catalyzed Hydrolyses of Some (+)-, (−)-, and (±)-2-Butyl, -2-Octyl, and -α-Phenethyl Esters
作者:Yong Yeng Lin、David N. Palmer、J. Bryan Jones
DOI:10.1139/v74-075
日期:1974.2.1
The α-chymotrypsin-catalyzedhydrolyses of a representative spectrum of (R)- and (S)-2-butyl, -2-octyl, and -α-phenethyl esters of N-acetyl-L-phenylalanine, N-acetylglycine, α-hydroxy-β-phenyl-propionic, dihydrocinnamic, and hippuric acids have been examined. The kinetic studies were carried out in order to provide data on the practicability of exploiting the stereospecificity of the nucleophilic region
Probing the specificity of the S 1 ′, leaving group, site of subtilisin Bacillus lentus using an enzyme-catalyzed transesterification reaction
作者:Richard C. Lloyd、Michael Dickman、J.Bryan Jones
DOI:10.1016/s0957-4166(98)00022-6
日期:1998.2
Subtilisin Bacillus lentus catalyzes transesterifications between N-acetyl-L-phenylalanine vinyl ester and a wide range of alcohols. Reaction yields are high when primary alcohols are used, and quantitative with methanol. With chiral alcohols, the reaction is enantioselective, and the stereoselectivity is reversed on going from open chain secondary alcohols to beta-branched primary alcohols. A model is proposed to account for this change in absolute configuration preference. (C) 1998 Elsevier Science Ltd. All rights reserved.
YAMADA, M.;YAHIRO, S.;YAMANO, T.;NAKATANI, Y.;OURISSON, G., BULL. SOC. CHIM. FR.,(1990) N, C. 821-829
作者:YAMADA, M.、YAHIRO, S.、YAMANO, T.、NAKATANI, Y.、OURISSON, G.