Synthesis of a Sialyl LewisX Mimetic Conjugated with DTPA, Potential Ligand of New Contrast Agents for Medical Imaging
作者:Yanjun Fu、Sophie Laurent、Robert N. Muller
DOI:10.1002/1099-0690(200212)2002:23<3966::aid-ejoc3966>3.0.co;2-p
日期:2002.12
mimetic of sialyl LewisX, namely 3-[2-(α-D-mannopyranosyloxy)phenyl]phenylacetic acid, was coupled to diethylenetriaminepentaacetic acid (DTPA) via a flexible alkyl spacer and the amide linkage. The overall yield of the eleven-step synthesis starting from 3-bromophenylacetic acid was 4−8%. This new ligand is expected to target inflammation sites through specific interactions with selectins, the adhesion
唾液酸基 LewisX 模拟物的结构,即 3-[2-(α-D-吡喃甘露糖氧基)苯基]苯乙酸,通过灵活的烷基间隔基和酰胺键与二亚乙基三胺五乙酸 (DTPA) 偶联。从 3-溴苯乙酸开始的 11 步合成的总产率为 4-8%。这种新配体有望通过与选择素的特异性相互作用来靶向炎症部位,选择素是病理条件下血管内皮上表达的粘附分子。特别是,DTPA 部分与钆或放射性核素的络合可以产生用于医学成像的造影剂。(© Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)