{3-[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-17-((R)-4-Azido-1-methyl-butyl)-3,7-bis-(3-tert-butoxycarbonylamino-propoxy)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-12-yloxy]-propyl}-carbamic acid tert-butyl ester 在
水 、
三苯基膦 作用下,
以
四氢呋喃 为溶剂,
以95%的产率得到{3-[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-17-((R)-4-Amino-1-methyl-butyl)-3,7-bis-(3-tert-butoxycarbonylamino-propoxy)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-12-yloxy]-propyl}-carbamic acid tert-butyl ester