Acetic acid 2-[(5S,8S,9S,10S,13R,14S,17R)-3-acetoxy-17-((R)-1,5-dimethyl-hexyl)-13-methyl-1,2,5,6,7,8,9,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-10-yl]-ethyl ester 在
间氯过氧苯甲酸 作用下,
以
氯仿 为溶剂,
反应 0.5h,
以190 mg的产率得到5,6-epoxy-19-homo-5α-cholestane-3β,l9-diacetate