dimethyl 3-(4,5-dimethoxy-2-(methoxymethoxy)phenyl)-4-(3,4-dimethoxyphenyl)pyrrole-2,5-dicarboxylate

dimethyl 3-(4,5-dimethoxy-2-(methoxymethoxy)phenyl)-4-(3,4-dimethoxyphenyl)-1-[2-(3,4-dimethoxyphenyl)ethyl]pyrrole-2,5-dicarboxylate

1-(3,4-dimethoxyphenyl)-3-[2-(3,4-dimethoxyphenyl)ethyl]-7,8-dimethoxy-4-oxo-3H-[1]benzopyrano[3,4-b]pyrrole-4-one

7,8-dimethoxy-3-(2-(3,4-dimethoxyphenyl)ethyl)-1-(3,4-dimethoxyphenyl)-[1]-benzopyrano[3,4-b]pyrrol-4(3H)-one-2-carboxylic acid

dimethyl 4-(4,5-dimethoxy-2-(methoxymethoxy)phenyl)-5-(3,4-dimethoxyphenyl)-1,2-diazine-3,6-dicarboxylate