1,4-Dimethyl-2,3-dioxoquinoxaline-6,7-dicarbonitrile 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
戊醇 为溶剂,
反应 9.0h,
以63%的产率得到7,10,20,23,33,36,46,49-Octamethyl-2,7,10,15,20,23,28,33,36,41,46,49,53,54,55,56-hexadecazatridecacyclo[40.10.1.13,14.116,27.129,40.04,13.06,11.017,26.019,24.030,39.032,37.043,52.045,50]hexapentaconta-1,3,5,11,13,15,17,19(24),25,27(55),28,30,32(37),38,40,42(53),43,45(50),51-nonadecaene-8,9,21,22,34,35,47,48-octone