胆固醇 、
8-(2,2-dimethyl-5-octyl-1,3-dioxolan-4-yl)octanoic acid 在
4-二甲氨基吡啶 、
N,N'-二环己基碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
反应 24.0h,
以55%的产率得到(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl 8-(2,2-dimethyl-5-octyl-1,3-dioxolan-4-yl)octanoate