7α-hydroxy-3α-iod-5β-cholansaeure-24,12α-lacton 在
氢氧化钾 作用下,
以
甲醇 为溶剂,
反应 48.0h,
以83%的产率得到(4R)-4-[(3R,5R,7R,8R,9S,10S,12S,13R,14S,17R)-7,12-dihydroxy-3-iodo-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoic acid