10-[4-(3-Aminopropyloxy)benzoylmethyl]-1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid tris(1,1-dimethylethyl) ester 、
3-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosylthio)propanoic acid 在
1-羟基苯并三唑 、
N,N'-二环己基碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
以65%的产率得到10-{4-[3-(3-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosylthio)-propanamido)propyloxy]-benzoylmethyl}-1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid tris(1,1-dimethylethyl) ester