2199-49-7
4-甲基吡咯-3-甲酸乙酯
→
874496-31-8
ethyl 5-bromo-4-methyl-1H-pyrrole-3-carboxylate
6339-66-8
5-甲酰基-4-甲基-1H-吡咯-3-羧酸乙酯
859067-05-3
5-bromo-2-formyl-4-methyl-pyrrole-3-carboxylic acid ethyl ester