N-(2-cyanoethyl)-1-methyl-4-nitropyrrole-2-carboxamide

4-[[(1,1-二甲基乙氧基)羰基]氨基]-1-甲基-1H-吡咯-2-羧酸甲酯

1-甲基-4-硝基吡咯-2-羧酸

4-[[[4-[[(1,1-二甲基乙氧基)羰基]氨基]-1-甲基-1H-吡咯-2-基]羰基]氨基]-1-甲基-1H-吡咯-2-羧酸

methyl 1-methyl-4-[[1-methyl-4-[(2-methylpropan-2-yl)oxycarbonylamino]pyrrole-2-carbonyl]amino]pyrrole-2-carboxylate