sodium methylate 、
Acetic acid (1R,3aS,3bR,5aS,6aR,8R,8aR,9aS,9bS,11aR)-8-chloro-1-((R)-1,5-dimethyl-hexyl)-9a,11a-dimethyl-7-oxo-octadecahydro-cyclobuta[h]cyclopenta[a]phenanthren-6a-yl ester 以
四氢呋喃 、
甲醇 为溶剂,
以100%的产率得到(1R,3aS,3bR,5aS,6aR,8R,8aR,9aS,9bS,11aR)-8-Chloro-1-((R)-1,5-dimethyl-hexyl)-6a-methoxy-9a,11a-dimethyl-octadecahydro-cyclobuta[h]cyclopenta[a]phenanthren-7-one