p. 1683 - 1692
(2007/10/02)p. 2656 - 2661
(2007/10/02)diethyl 5-(bromomethyl)-3-methylpyrrole-2,4-dicarboxylate
diethyl 2,4-dimethylpyrrole-3,5-dicarboxylate
ethyl 2-(chloromethyl)-3-(ethoxycarbonyl)-4-methylpyrrole-5-carboxylate
<3,3',5,5'-tetrakis(ethoxycarbonyl)-4,4'-dimethyl-2,2'-dipyrryl>methane