1-Iodomethyl-3-methoxycarbonylmethyl-4,5-dimethyl-1H-pyrrole-2-carboxylic acid methyl ester

benzyl 3-(β-acetoxyethyl)-4,5-dimethyl-2-pyrrolecarboxylate

ethyl 3-(ethoxycarbonylmethyl)-4,5-dimethylpyrrole-2-carboxylate

ethyl 4-diethylaminomethyl-3-(ethoxycarbonylmethyl)-5-methylpyrrole-2-carboxylate