2-hexadecanoyloxy-1-(hexadecanoyloxymethyl)ethyl hydrogen 3,3-dimethylglutarate 、 [(3R,5S,8R,9S,10S,13S,14S,17S)-17-acetyl-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] 1-chloroethyl carbonate 在
四丁基碘化铵 、
caesium carbonate 作用下,
以
甲苯 为溶剂,
反应 2.0h,
以51.7%的产率得到1-(1-(((((3R,5S,8R,9S,10S,13S,14S,17S)-17-acetyl-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl)oxy)carbonyl)oxy)ethyl) 5-(1,3-bis(palmitoyloxy)propan-2-yl) 3,3-dimethylpentanedioate