ethyl 5-((3-methoxy-5-(1H-pyrrol-2-yl)-1H-pyrrol-2-yl)methylene)-2,4-dimethyl-5H-pyrrole-3-carboxylate
ethyl 5-((3-methoxy-5-(1h-pyrrol-2-yl)-1h-pyrrol-2-yl)methylene)-2,4-dimethyl-5h-pyrrole-3-carboxylate