(1S,2R)-N-(2-hydroxy-1-methyl-2-phenylethyl)-3,3-dimethoxypropanamide 在
对甲苯磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 8.0h,
生成 (2R,3S,7R)-7-Methoxy-3-methyl-2-phenyl-[1,4]oxazepan-5-one 、 (2R,3S,7R,9R,10S,14S)-7,14-Dimethoxy-3,10-dimethyl-2,9-diphenyl-1,8-dioxa-4,11-diaza-cyclotetradecane-5,12-dione 、 (2R,3S,7S,9R,10S,14S)-7,14-Dimethoxy-3,10-dimethyl-2,9-diphenyl-1,8-dioxa-4,11-diaza-cyclotetradecane-5,12-dione 、 (2R,3S,7R,9R,10S,14R)-7,14-Dimethoxy-3,10-dimethyl-2,9-diphenyl-1,8-dioxa-4,11-diaza-cyclotetradecane-5,12-dione