9-methoxy-9-methoxycarbonyl-8-methyl-2,3,9,10-tetrahydro-8,11-epxoy-1H,8H,11H-2,7b-11a-triazadibenzo(a,g)cycloocta(cde)-trinden-1-one
9-methoxy-9-methoxycarbonyl-8-methyl-2,3,9,10-tetrahydro-8,11-epxoy-1h,8h,11h-2,7b-11a-triazadibenzo(a,g)cycloocta(cde)-trinden-1-one