109662-95-5
1-(2-amino-phenyl)-2-methyl-5-phenyl-pyrrole-3-carboxylic acid ethyl ester
→
109662-98-8
(Z)-ethyl 4-((2-(3-(ethoxycarbonyl)-2-methyl-5-phenyl-1H-pyrrol-1-yl)phenyl)diazenyl)-2-methyl-1,5-diphenyl-1H-pyrrole-3-carboxylate