8-Phenyl-6H-1,3-dioxa-5,6,8-triaza-cyclopenta[b]anthracene-7,9-dione
6-Acetylamino-[1,3]dioxolo[4,5-g]quinoline-7-carboxylic acid phenylamide
8-Phenyl-8H-1,3-dioxa-5,6,8-triaza-cyclopenta[b]anthracen-9-one
7-Methyl-8-phenyl-8H-1,3-dioxa-5,6,8-triaza-cyclopenta[b]anthracen-9-one