label: 13-phenyl-2,3,4,13-tetrahydro-1H,12H-benzo(6,7)chromeno(2,3-d)pyrido(1,2-a)pyrimidine-7,12,14-trione
label_lc: 13-phenyl-2,3,4,13-tetrahydro-1h,12h-benzo(6,7)chromeno(2,3-d)pyrido(1,2-a)pyrimidine-7,12,14-trione