Methyl 2-[[26,28-bis(hex-5-enoxy)-27-(2-methoxy-2-oxoethoxy)-25-pentacyclo[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-dodecaenyl]oxy]acetate 在
Grubbs catalyst first generation 作用下,
以
苯 为溶剂,
以68%的产率得到methyl 2-[[40-(2-methoxy-2-oxoethoxy)-19,30-dioxahexacyclo[15.14.7.17,11.133,37.05,31.013,18]tetraconta-1(31),2,4,7(40),8,10,13,15,17,24,33(39),34,36-tridecaen-39-yl]oxy]acetate