Acetic acid (3R,5R,6R,8S,9S,10R,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-3-(toluene-4-sulfonyloxy)-hexadecahydro-cyclopenta[a]phenanthren-6-yl ester 在
N-甲基吡咯烷酮 、 sodium azide 作用下,
生成
Acetic acid (3S,5R,6R,8S,9S,10R,13R,14S,17R)-3-azido-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-6-yl ester