glycine methyl 3α-(3-dimethoxyformylbenzoyloxy)-12α-hydroxy-5β-deoxycholan-24-oate 在
一水合肼 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以90%的产率得到[(3R,5R,8R,9S,10S,12S,13R,14S,17R)-17-[(2R)-5-[(2-hydrazinyl-2-oxoethyl)amino]-5-oxopentan-2-yl]-12-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] 3-(dimethoxymethyl)benzoate