2-[2-[2-[[5,11,17,23-Tetratert-butyl-27-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]-26,28-dipropoxy-25-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaenyl]oxy]ethoxy]ethoxy]ethanol 、
对甲苯磺酰氯 在
4-二甲氨基吡啶 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 48.0h,
以90%的产率得到2-[2-[2-[[5,11,17,23-Tetratert-butyl-27-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]-26,28-dipropoxy-25-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaenyl]oxy]ethoxy]ethoxy]ethyl 4-methylbenzenesulfonate