t-butyl 4-(2-methoxycarbonylethyl)-3-methylpyrrole-2-carboxylate 、 benzyl 4-(2-acetoxyethyl)-5-acetoxymethyl-3-methylpyrrole-2-carboxylate 以
溶剂黄146 为溶剂,
反应 3.0h,
以12.75 g的产率得到benzyl 3-(2-acetoxyethyl)-5'-t-butoxycarbonyl-3'-(2-methoxycarbonylethyl)-4,4'-dimethyl-2,2'-dipyrrylmethane-5-carboxylate