110814-84-1
ethyl 5-chloro-3,4-diethylpyrrole-2-carboxylate
→
~71%
110814-85-2
ethyl 5-bromo-3,4-dimethylpyrrole-2-carboxylate
938-75-0
3,4-二甲基-1H-吡咯-2-羧酸乙酯