(氯亚甲基)二甲基氯化铵

methyl 3-(2,4-dimethyl-1H-pyrrol-3-yl)propanoate

4-(3-甲氧基-3-氧代丙基)-3,5-二甲基-1H-吡咯-2-羧酸

5-(苄氧羰基)-2,4-二甲基-3-吡咯丙酸甲酯

methyl 4-(3-methoxy-3-oxopropyl)-3,5-dimethyl-1H-pyrrole-2-carboxylate