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

3,3,5-trimethyl-2-(1H-pyrrol-2-ylmethyl)-2,4-dihydropyrrole

2-(cyclopenta-2,4-dien-1-ylidenemethyl)-1H-pyrrole

吡咯并[1,2-a]喹喔啉

2-(2-nitroethenyl)-1H-pyrrole