5-(2-aminoacetylamino)-N,N-bis-(2-aminoethyl)-2,4,6-triiodoisophthalic acid amide 、 gadolinium complex of 10-(4-carboxy-1-methyl-2-oxo-3-azabutyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid 在
N-羟基丁二酰亚胺 、
N,N'-二环己基碳二亚胺 作用下,
以
二甲基亚砜 为溶剂,
反应 73.0h,
以62%的产率得到2,4,6-triiodo-5-(3,6-diaza-1,4,7-trioxo-8-methyloctane-1,8-diyl-{10-[1,4,7-tris-(carboxylatomethyl)-1,4,7,10-tetraazacyclododecanyl, Gd complex]})aminoisophthalic acid-N,N-bis-(3,6-diaza-4,7-dioxo-8-methyloctane-1,8-diyl-{10-[1,4,7-tris-(carboxylatomethyl)-1,4,7,10-tetraazacyclododecanyl, Gd complex]})amide