(3β-acetoxy-2'-methyl-(16β)-16H-pregn-5-eno[16,17-d]oxazol-20-ylidene)-hydrazinecarboxylic acid ethyl ester 在
溶剂黄146 作用下,
生成 Acetic acid (3S,8R,9S,10R,13S,14S,16R,17S)-17-acetyl-16-acetylamino-17-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester