(8-methoxy-6-methyl-8H-[1,3]dioxolo[4,5-g]quinazolin-7-yl)-carbamic acid benzyl ester; hydrochloride
7,16-dimethyl-4bH,13bH-bis[1,3]dioxolo[4,5-g;4',5'-g'][1,2,4,5]tetrazino[1,6-c;4,3-c']diquinazoline-5,14-dicarboxylic acid dibenzyl ester
(6-Methyl-8-oxo-8H-[1,3]dioxolo[4,5-g]quinazolin-7-yl)-carbamic acid benzyl ester
O-benzyl carbamate
dibenzyl 3-methyl-5-<4,5-methylenedioxy-2-(2-methyl-6,7-methylenedioxyquinazolin-4-ylamino)phenyl>-Δ2-1,2,4-triazoline-1,4-dicarboxylate
2-methyl-6,7-methylenedioxy-quinazoline
5-ethoxy-2-methyl-1(3),5-dihydro-[1,3]dioxolo[4',5':4,5]benzo[1,2-e][1,2,4]triazepine-4-carboxylic acid benzyl ester