2,8,14,20-Tetraheptylpentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3(28),4,6,9(27),10,12,15,17,19(26),21,23-dodecaene-4,5,6,10,11,12,16,17,18,22,23,24-dodecol 、
溴乙酸乙酯 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
反应 72.0h,
以57%的产率得到2,8,14,20-tetranon-1-yl-4,5,6,10,11,12,16,17,18,22,23,24-dodeca(ethoxycarbonylmethoxy)pentacyclo[19.3.1.1(3,7).1(9,13).1(15,19)]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene