3-(3-ethyl-5-formyl-4-methylpyrrol-2-ylmethyl)-4,5-dihydronaphtho[1,2-c]pyrrole-1-carboxylic acid

benzyl 3-(5-formyl-3,4-dimethylpyrrol-2-ylmethyl)-4,5-dihydronaphtho[1,2-c]pyrrole-1-carboxylate