1,1-二氯甲醚 、 25,27-bis(N,N-diethylaminocarbonylmethoxy)calix[4]arene 在
四氯化锡 作用下,
以93%的产率得到2-[[27-[2-(diethylamino)-2-oxoethoxy]-5,17-diformyl-26,28-dihydroxy-25-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9(27),10,12,15(26),16,18,21,23-dodecaenyl]oxy]-N,N-diethylacetamide