Benzyl 4-[2-hydroxy-3-[4,7,10-tris[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]-1,4,7,10-tetrazacyclododec-1-yl]propoxy]benzoate 在
5%-palladium/activated carbon 、
氢气 作用下,
以
甲醇 为溶剂,
反应 16.0h,
以86%的产率得到4-[2-hydroxy-3-[4,7,10-tris[2-(1,1-dimethylethoxy)-2-oxoethyl]-1,4,7,10-tetrazacyclododec-1-yl]propoxy]benzoic acid