6,18-Dimethyl-12-methylidene-10,14,27,30,33,36,39-heptaoxa-3,21-diazapentacyclo[38.2.2.223,26.04,9.015,20]hexatetraconta-1(43),4(9),5,7,15(20),16,18,23,25,40(44),41,45-dodecaene-2,22-dione 反应 5.0h,
以61%的产率得到7,15-Dimethyl-11-methylidene-3,19,25,28,31,34,37-heptaoxa-45,46-diazaheptacyclo[36.2.2.221,24.12,5.117,20.04,9.013,18]hexatetraconta-1(41),2(46),4(9),5,7,13(18),14,16,20(45),21,23,38(42),39,43-tetradecaene