3-(4-methoxycarbonylmethyl-5-methyl-pyrrol-3-yl)-propionic acid methyl ester 、 benzyl 2,8-bis(2-methoxycarbonylethyl)-3,7-bis(methoxycarbonylmethyl)-9-(phenylseleno)methyl-5,10-dihydrodipyrrin-1-carboxylate 在
copper(I) trifluoromethanesulfonate benzene 、
calcium carbonate 作用下,
以
二氯甲烷 、
苯 为溶剂,
反应 0.03h,
以72%的产率得到benzyl 2,8,12-tris(2-methoxycarbonylethyl)-3,7,13-tris(methoxycarbonylmethyl)-14-methyl-5,10,15,17-tetrahydrotripyrrin-1-carboxylate