4,4',4''-Ethantriyltris(benzoylchlorid) 、
二氮杂18-冠醚-6 以7%的产率得到6,17,27,38,47,58-Hexaoxo-10,13,31,34,51,54,67,70,79,82,91,94-dodecaoxa-7,16,28,37,48,57-hexaazaundecacyclo-<20.20.20.8
7,16.8
28,37.8
48,57.2
2,5.2
18,21.2
23,26.2
39,41.2
43,46.2
59,62>octanonadeca-2,4,18,20,23,25,39,41,45,60,61,63,73,75,85...