Bioresolution Production of (2R,3S)-Ethyl-3-phenylglycidate for Chemoenzymatic Synthesis of the Taxol C-13 Side Chain by Galactomyces geotrichum ZJUTZQ200, a New Epoxide-Hydrolase-Producing Strain
作者:Chun Wei、Jinlong Ling、Honglei Shen、Qing Zhu
DOI:10.3390/molecules19068067
日期:——
racemic ethyl 3-phenylglycidate (rac-EPG) for producing (2R,3S)-ethyl-3-phenylglycidate ((2R,3S)-EPG). G. geotrichum ZJUTZQ200 was verified to be able to afford high enantioselectivity in whole cell catalyzed synthesis of this chiral phenylglycidate synthon. After the optimization of the enzymatic production and bioresolution conditions, (2R,3S)-EPG was afforded with high enantioselectivity (e.e.S >
新分离出的含有环氧化物水解酶的土霉半乳杆菌 ZJUTZQ200 菌株用于分解外消旋 3-苯基缩水甘油酸乙酯 (rac-EPG),用于生产 (2R,3S)-3-苯基缩水甘油酸乙酯 ((2R,3S)-EPG)。G. geotrichum ZJUTZQ200 被证实能够在全细胞催化合成这种手性苯基缩水甘油酸合成子中提供高对映选择性。在优化酶促生产和生物拆分条件后,(2R,3S)-EPG 在反应 8 小时后具有高对映选择性(eeS > 99%,E > 49)。发现共溶剂、pH 缓冲溶液和底物/细胞比对 G. geotrichum ZJUTZQ200 的生物分辨率有显着影响。基于生物拆分产物 (2R,3S)-EPG,紫杉醇的侧链乙基 (2R,