Abstract

We report the synthesis of a macrocyclic Gd chelate based on a 1,4,7,10-Tetraazacyclododecane-1,4,7-Trisacetic acid (DO3A) coordinationn cage bearing an ethoxybenzyl (EOB) moiety and discuss its use as a T1 hepatobiliary magnetic resonance imaging (MRI) contrast agent. The new macrocyclic liver agent shows high chelation stability and high r1 relaxivity compared with linear-Type Gd chelates, which are the current clinically approved liver agents. Our macrocyclic, liver-specific Gd chelate was evaluated in vivo through biodistribution analysis and liver MRI, which demonstrated its high tumor detection sensitivity and suggested that the new Gd complex is a promising contrast agent for liver cancer imaging.

Original languageEnglish
Pages (from-to)4861-4868
Number of pages8
JournalJournal of Medicinal Chemistry
Volume60
Issue number12
DOIs
StatePublished - 22 Jun 2017

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