20,24-diamino-2,3,11,12-dibenzo-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-diene 、
cis-5-norbornene-exo-2,3-dicarboxylic anhydride 在
PPA 作用下,
反应 2.0h,
以76%的产率得到7,10,13,29,32,35-hexaoxa-17,39-diazanonacyclo[40.2.1.120,23.02,41.04,38.06,36.014,28.016,26.019,24]hexatetraconta-4,6(36),14(28),15,21,26,37,43-octaene-3,18,25,40-tetrone