Asymmetric Synthesis of Florfenicol by Dynamic Reductive Kinetic Resolution with Ketoreductases
作者:Jie Zou、Guowei Ni、Jiawei Tang、Jun Yu、Luobin Jiang、Dianwen Ju、Fuli Zhang、Shaoxin Chen
DOI:10.1002/ejoc.201800658
日期:2018.9.30
Chemoenzymatic synthesis: The preparation of florfenicol features the use of enzymatic dynamic reductive kinetic resolution (DYRKR) to establish the two stereocenters of the cis‐1,2‐amino alcohol intermediate with >99 % ee and a diastereomeric ratio (dr) of 99 %. The treatment of aziridines and cyclic sulfates with Et3N‐3HF was used to introduce the fluorine atom with high regioselectivity.
化学酶促合成:氟苯尼考的制备方法是利用酶促动态还原动力学拆分(DYRKR)来建立顺式1,2-氨基醇中间体的两个立体中心,其ee大于99% ,非对映体比率(dr)为99% 。用Et 3 N-3HF处理氮丙啶和环硫酸盐可以高区域选择性地引入氟原子。