N-(3-chloropropyl)-2-[[5,11,17,23-tetratert-butyl-27-[2-(3-chloropropylamino)-2-oxoethoxy]-26,28-dihydroxy-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]acetamide 在
sodium hydroxide 、
四丁基溴化铵 作用下,
以
甲苯 为溶剂,
反应 6.0h,
以88%的产率得到3,9,24,30-Tetratert-butyl-13,20,34,41-tetraoxa-16,37-diazaheptacyclo[30.10.1.111,22.05,42.07,12.021,26.028,33]tetratetraconta-1,3,5(42),7(12),8,10,21(26),22,24,28(33),29,31-dodecaene-15,36-dione