2,4,2',4',2'',4'',2''',4'''-octamethyl-5,5',5'',5'''-ethanediylidene-tetrakis-pyrrole-3-carboxylic acid tetraethyl ester

(3,4,5-trimethyl-pyrrol-2-yl)-glyoxylic acid ethyl ester

水合肼

2-[(3,5-二甲基-2H-吡咯-2-亚基)甲基]-3,5-二甲基-1H-吡咯

1,1-bis-(5-acetyl-2,4-dimethyl-pyrrol-3-yl)-ethane