2-氨基-3-氧代-丁酸乙酯盐酸盐

1-(tert-butyl) 2,4-diethyl 3,5-dimethyl-1H-pyrrole-1,2,4-tricarboxylate

3,5-dimethyl-pyrrole-2,4-dicarboxylic acid-2-ethyl ester-4-benzyl ester

2,4-二甲基-5-乙氧羰基-3-吡咯甲酸

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