Synthesis of [123I]-3-(4-iodobenzyl)-1,2,3,4-tetrahydro-8-hydroxychromeno[3,4-c]pyridin-5-one, a potential dopamine D4 ligand for SPECT studies
作者:L. Staelens、R. Oltenfreiter、B. Cornelissen、P. Blanckaert、F. De Vos、D. Deforce、R.A. Dierckx、G. Slegers
DOI:10.1002/jlcr.902
日期:2005.2
However, research into the specific role of this receptor has been hampered by the lack of specific ligands. Therefore, a new 123I-labelled compound was developed which may allow in vivo visualization of the D4 receptor by SPECT. [123I]-3-(4-iodobenzyl)-1,2,3,4-tetrahydro-8-hydroxychromeno[3,4-c]pyridin-5-one was prepared by electrophillic aromatic substitution of the tributylstannyl derivative. The radiochemical
精神分裂症是一种毁灭性的精神障碍,其特征是反复发作的精神病发作,伴随着情绪、职业和社交能力的衰退。精神分裂症的经典多巴胺假说假定多巴胺能神经传递的过度活跃是该疾病阳性症状的原因,更确切地说是多巴胺 D2 样受体的过度活跃。这些受体之一是 D4 受体,它被认为与抗精神病药引起的运动副作用有关。然而,由于缺乏特定的配体,对该受体的特定作用的研究受到了阻碍。因此,开发了一种新的 123 I 标记化合物,它可以通过 SPECT 在体内观察 D4 受体。[123I]-3-(4-iodobenzyl)-1,2,3,4-tetrahydro-8-hydroxychromeno[3, 4-c]pyridin-5-one 是通过三丁基甲锡烷基衍生物的亲电芳香取代制备的。放射化学产率为68±3% (n=5),比活>2.96 Ci/µmol。版权所有 © 2005 John Wiley & Sons, Ltd.