ethyl (E)-3-[3-methoxy-5-methyl-2-[(methyl-oxo-phenyl-lambda6-sulfanylidene)amino]phenyl]-2-methylprop-2-enoate 在
lithium diisopropyl amide 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
生成 (S)-2-((2R,4R)-8-Methoxy-6-methyl-2-oxo-2-phenyl-3,4-dihydro-2λ
6-benzo[c][1,2]thiazin-4-yl)-propionic acid ethyl ester 、 (R)-2-((2R,4R)-8-Methoxy-6-methyl-2-oxo-2-phenyl-3,4-dihydro-2λ
6-benzo[c][1,2]thiazin-4-yl)-propionic acid ethyl ester