Acetic acid (2R,3S,5S,8S,9S,10R,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-13-methyl-tetradecahydro-20-oxa-cyclopropa[2,3]cyclopenta[a]phenanthren-10-ylmethyl ester 在
氢溴酸 作用下,
生成 Acetic acid (2S,3S,5S,8S,9S,10R,13R,14S,17R)-2-bromo-17-((R)-1,5-dimethyl-hexyl)-3-hydroxy-13-methyl-hexadecahydro-cyclopenta[a]phenanthren-10-ylmethyl ester