tert-butyl-[[(3S,4S,7S,8S)-13-methoxy-3-methyl-4-pentacyclo[13.2.1.03,7.08,17.011,16]octadeca-1(17),11(16),12,14-tetraenyl]oxy]-dimethylsilane 在
氨 、
lithium 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以83%的产率得到tert-Butyl-((4aR,5aS,6S,8aS,8bS,10cR)-2-methoxy-5a-methyl-4,4a,5,5a,6,7,8,8a,8b,9,10,10c-dodecahydro-dicyclopenta[a,def]phenanthren-6-yloxy)-dimethyl-silane