1-benzyloxycarbonyl-3,4-diethylpyrrole

3,4-diethyl-pyrrole-2,5-dicarboxylic acid monoethyl ester

4-硝基-3-己醇

3,4-二乙基-5-甲基-2-吡咯羧酸乙酯

ethyl 4-acetyl-3-ethyl-5-methyl-1H-pyrrole-2-carboxylate