(3R,5S,8S,9S,10S,11R,13R,14S,17R)-11-(tert-Butyl-dimethyl-silanyloxy)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-ol 在
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
1,4-二氧六环 为溶剂,
反应 48.0h,
以40%的产率得到(8S,9S,10R,11R,13R,14S,17R)-11-(tert-Butyl-dimethyl-silanyloxy)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-8,9,10,11,12,13,14,15,16,17-decahydro-cyclopenta[a]phenanthren-3-one