2,4,6-Trimethyl-benzenesulfonate5-amino-6,8-dimethyl-[1,3]dioxolo[4,5-g]quinazolin-5-ium;
N-[6-(2-{[2-(6-Acetylamino-benzo[1,3]dioxol-5-yl)-2-oxo-ethyl]-benzyl-amino}-acetyl)-benzo[1,3]dioxol-5-yl]-acetamide
4-{Acetyl-[2-(6-acetylamino-benzo[1,3]dioxol-5-yl)-2-oxo-ethyl]-amino}-benzoic acid ethyl ester
4-[Acetyl-(6-methyl-[1,3]dioxolo[4,5-g]quinazolin-8-ylmethyl)-amino]-benzoic acid ethyl ester
4-{Acetyl-[6-methyl-[1,3]dioxolo[4',5':4,5]benzo[1,2-d][1,3]oxazin-(8Z)-ylidenemethyl]-amino}-benzoic acid ethyl ester