Methanesulfonic acid (3S,5R,6S,7R,8S,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-octadecahydro-cyclopropa[6,7]cyclopenta[a]phenanthren-3-yl ester 在
potassium acetate 、
乙酸酐 作用下,
以
溶剂黄146 为溶剂,
生成 (5R,6S,7R,8S,9S,10S,13R,14S,17R)-17-((R)-1,5-Dimethyl-hexyl)-10,13-dimethyl-1,4,5,6,7,8,9,10,11,12,13,14,15,16,17,20-hexadecahydro-cyclopropa[6,7]cyclopenta[a]phenanthrene