7α-azido-3β-(tetrahydropyran-2-yloxy)cholestane 在
lithium aluminium tetrahydride 作用下,
以
四氢呋喃 为溶剂,
生成 (3S,5S,7R,8R,9S,10S,13R,14S,17R)-17-((R)-1,5-Dimethyl-hexyl)-10,13-dimethyl-3-(tetrahydro-pyran-2-yloxy)-hexadecahydro-cyclopenta[a]phenanthren-7-ylamine