Synonyms: 16,19-Secostrychnidin-16-one,19-methyl-; Icajidine (8CI);12H-6a,4-(Ethaniminomethano)indolo[3,2,1-ij]oxepino[2,3,4-de]quinoline,16,19-secostrychnidin-16-one deriv.;12H-6a,4-(Ethaniminomethano)indolo[3,2,1-ij]oxepino[2,3,4-de]quinolin-6(2H)-one,4a,5,13,13a,13b,13c-hexahydro-16-methyl-, [4aR-(4aa,6ab,13aa,13ba,13cb)]-