(R)-1-(1-(4-chlorophenyl)-2-methylene-3-oxobutyl)-1H-pyrrole-2,4-dicarbonitrile
(2'S)-1-[1'-(tert-butyldiphenylsilyloxy)-4'-hydroxybutan-2'-yl]-1H-pyrrole-2,4-dicarbonitrile
1-(2,3,5-tri-O-benzyl-β-D-arabinofuranosyl)pyrrole-2,4-dicarboxamide
1-(2-deoxy-3,5-di-O-(p-toluoyl)-β-D-erythro-pentofuranosyl)pyrrole-2,4-dicarbonitrile
1H-pyrrole-2,4-dicarboxaldehyde