5-(苄氧羰基)-2,4-二甲基-3-吡咯丙酸甲酯

dibenzyl 3,3'-bis-(2-methoxycarbonylethyl)-4,4'-dimethyl-2,2'-methylenedipyrrole-5,5'-dicarboxylate

5-acetoxymetyl-4-acetyl-2-benzyloxycarbonyl-3-methyl-1H-pyrrole

3,3'-di(2-methoxycarbonylethyl)-4,4'-dimethyl-2,2'-dipyrrylmethane-5,5'-dicarboxylic acid

[5,5'-diformyl-4,4'-dimethyl-3,3'-bis[2-(methoxycarbonyl)ethyl]-2,2'-dipyrryl]methane