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

5-bromo-4-(3,4-dimethoxyphenyl)-1H-pyrrole-2-carboxylic acid ethyl ester

2-bromo-1-(3,4-dimethoxyphenyl)-8,9-dimethoxy-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-carboxylic acid ethyl ester

2-hydroxy-4,5-dimethoxyphenylboronic acid