(2Z,4R,5R)-3-acetylamino-4,5-dimethyl-oct-2-enoic acid ethyl ester 在
catalyst
氢气 作用下,
以
甲醇 为溶剂,
反应 18.0h,
以The table below provides conversion and ratio of (3R,4R,5R)-3-acetylamino-4,5-dimethyl-octanoic acid ethyl ester (desired diastereoisomer) to (3S,4R,5R)-3-acetylamino-4,5-dimethyl-octanoic acid ethyl ester (undesired diastereoisomer) for various hydrogenation catalysts的产率得到(3R,4R,5R)-3-acetylamino-4,5-dimethyl-octanoic acid ethyl ester