tert-butyl 3-(ethoxycarbonyl)-4-methyl-2-pyrrolecarboxylate

2-苄基-3,5-二甲基-1H-吡咯-2,4-二羧酸-4-乙酯

乙酰乙酸乙酯

2-(tert-butyl) 3-ethyl 5-iodo-4-methyl-1H-pyrrole-2,3-dicarboxylate

tert-butyl 3-(ethoxycarbonyl)-4-methyl-5-carboxy-2-pyrrolecarboxylate