p. 2099 - 2109
(2007/10/03)benzyl 3-<2-(methoxycarbonyl)ethyl>-4,5-methylpyrrole-2-carboxylate
benzyl 3-(2-methoxycarbonylethyl)-4-methoxycarbonylmethyl-5-methylpyrrole-2-carboxylate
{[5-tert-Butoxycarbonyl-4-(2-methoxycarbonyl-ethyl)-3-methyl-1H-pyrrol-2-yl]-cyano-methyl}-triphenyl-phosphonium
dibenzyl 3,3'-bis(2-methoxycarbonylethyl)-4,4'-dimethyl-2,2'-pyrromethane-5,5'-dicarboxylate
5-acetoxymethyl-3-(2-methoxycarbonyl-ethyl)-4-methoxycarbonylmethyl-pyrrole-2-carboxylic acid benzyl ester