1-naphthylmethyl 3α,12α-bis(chloroacetyloxy)-5β-cholan-24-oate 、
sodium cholate 以
N,N-二甲基甲酰胺 为溶剂,
反应 7.0h,
以86%的产率得到[2-[[(3R,5R,8R,9S,10S,12S,13R,14S,17R)-12-[2-[(4R)-4-[(3R,5R,8R,9S,10S,12S,13R,14S,17R)-3,12-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoyl]oxyacetyl]oxy-10,13-dimethyl-17-[(2R)-5-(naphthalen-1-ylmethoxy)-5-oxopentan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-2-oxoethyl] (4R)-4-[(3R,5R,8R,9S,10S,12S,13R,14S,17R)-3,12-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoate