4,4-dimethyl-5-nitro-6-(1H-pyrrol-2-yl)hexan-2-one

2-吡咯甲醛

异丙叉丙酮

2-(2-nitroethyl)-1H-pyrrole

3,3,5-trimethyl-1-oxido-2-(1H-pyrrol-2-ylmethyl)-2,4-dihydropyrrol-1-ium