Synthesis, Receptor Potency, and Selectivity of Halogenated Diphenylpiperidines as Serotonin 5-HT<sub>2A</sub> Ligands for PET or SPECT Brain Imaging
作者:Xing Fu、Ping-Zhong Tan、Nora S. Kula、Ross Baldessarini、Gilles Tamagnan、Robert B. Innis、Ronald M. Baldwin
DOI:10.1021/jm0200411
日期:2002.5.1
A series of 4'-substituted phenyl-4-piperidinylmethanol and benzoyl-4-piperidine derivatives was synthesized as potential novel serotonin 5-HT2A receptor ligands that can be radiolabeled for in vivo brain imaging. Compounds were prepared by alkylation of 4-substituted benzoyl-4-piperidine with an iodo- or fluoro-substituted phenylalkyl halide followed by reduction with sodium borohydride. Potency of
合成了一系列4'-取代的苯基-4-哌啶基甲醇和苯甲酰基-4-哌啶衍生物,作为可能的新型5-羟色胺5-HT2A受体配体,可以对其进行体内脑成像的放射性标记。通过将4-取代的苯甲酰基-4-哌啶与碘或氟取代的苯基烷基卤化物烷基化,然后用硼氢化钠还原来制备化合物。通过对5-羟色胺5-HT2A受体有选择性的体外放射性受体亲和力测定法确定了新化合物的效力。进一步评估了强效化合物在5-羟色胺-2A对2C,6和7以及多巴胺D2和肾上腺素α1和α2受体上的选择性。新型化合物(4-氟苯基)-(1- [2-(4-氟苯基)乙基]哌啶-4-基])甲醇特别有希望,它具有高的5-HT2A效能(K(i)= 1.63 nM),并且>