硫酸

2,4-二甲基-3-吡咯羧酸乙酯

乙基2,4-二甲基-5-丙酰基-1H-吡咯-3-羧酸酯

ethyl 2,4-dimethyl-5-(phenylcarbamoyl)-1H-pyrrole-3-carboxylate

3,5-dimethyl-4-phenylcarbamoyl-pyrrole-2-carboxylic acid ethyl ester