5-(乙酰氧甲基)-4-乙基-3-甲基-1H-吡咯-2-羧酸乙酯

4-乙基-3,5-二甲基-1H-吡咯-2-甲酸乙酯

乙基4-乙基-3-甲基-1H-吡咯-2-羧酸酯

1-(4-amino-1,2,5-oxadiazol-3-yl)-N-[(2,4-dichlorophenyl)methylideneamino]-5-propyltriazole-4-carboxamide

5-ethoxymethyl-4-ethyl-3-methyl-pyrrole-2-carboxylic acid ethyl ester