diethyl 5-[(4-ethoxycarbonyl-3,5-dimethyl-1H-pyrrol-2-yl)methyl]-3-methyl-1H-pyrrole-2,4-dicarboxylate

diethyl 5-[(4-ethoxycarbonyl-2,5-dimethyl-1H-pyrrol-3-yl)methyl]-3-methyl-1H-pyrrole-2,4-dicarboxylate

5-[(5-羧基-3-乙氧羰基-4-甲基-1H-吡咯-2-基)甲基]-4-乙氧羰基-3-甲基-1H-吡咯-2-羧酸

5-methoxymethyl-3-methyl-pyrrole-2,4-dicarboxylic acid diethyl ester