2-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,9,12,14-heptaene
2-azatricyclo[9.4.0.03,8]pentadeca-1(11),3(8),4,6,9,12,14-heptaene
2-azatricyclo[9.4.0.03,8]pentadeca-1(15),3,5,7,9,11,13-heptaene
2-azatricyclo[9.4.0.0³,⁸]pentadeca-1(11),3(8),4,6,9,12,14-heptaene