1,3,6,7,8,9-hexaphenyl-2,3-diazaspiro (4.4) nona-1,6,8-triene

1,3,6,7,8,9-hexaphenyl-5-methyl-2,3-diazaspiro (4.4) nona-1,6,8-triene

5-tert-butyl-1,3-diphenyl-1,2,4-diazaphosphole

1-azacyclohepta-2,4,6,7-tetraene

苯甲腈