重氮甲烷 、
Acetic acid (2S,4aR,4bS,6aS,8aS,9aS,9bR)-6b-acetyl-4a,6a-dimethyl-2,3,4,4a,4b,5,6,6a,6b,8a,9,9a,9b,10-tetradecahydro-1H-cyclobuta[3,4]cyclopenta[1,2-a]phenanthren-2-yl ester 以
乙醚 、
苯 为溶剂,
反应 240.0h,
以72%的产率得到bicyclo<3.2.0>-2',3'-diazohept-2'-eno<16α,17α>pregn-5-en-3β-ol-20-one acetate