3-{(S)-1-[2-(2-tert-Butoxycarbonylamino-phenyl)-2-oxo-acetyl]-pyrrolidin-2-yl}-butyric acid methyl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 8.0h,
生成 (7S,7aS)-7-Methyl-5,7,7a,8,9,10-hexahydro-5,10a-diaza-cyclopenta[b]phenanthrene-6,11-dione 、 (7R,7aS)-7-Methyl-5,7,7a,8,9,10-hexahydro-5,10a-diaza-cyclopenta[b]phenanthrene-6,11-dione