Acetic acid (8S,9R,13S,14S)-9-hydroxy-17-[(Z)-hydroxyimino]-13-methyl-11-nitrooxy-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-3-yl ester 在
吡啶 、 sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
反应 19.5h,
生成
17-hydroxyiminoestra-1,3,5(10)-triene-3,11α-diol triacetate