(1S,5R,7S)-7-Acetoxy-7-methyl-3,4-dioxo-1-phenyl-2-aza-bicyclo[3.2.0]heptane-5-carboxylic acid ethyl ester 在
三乙胺 作用下,
以
苯 为溶剂,
反应 10.0h,
生成
6-Acetoxy-3-hydroxy-6-methyl-2-oxo-7-phenyl-5,6-dihydro-2H-azepine-4-carboxylic acid ethyl ester 、 (1S,5R,7R)-7-Acetoxy-7-methyl-3,4-dioxo-1-phenyl-2-aza-bicyclo[3.2.0]heptane-5-carboxylic acid ethyl ester