Synthesis and Pharmacology of Site-Specific Cocaine Abuse Treatment Agents: Restricted Rotation Analogues of Methylphenidate
作者:Deog-Il Kim、Howard M. Deutsch、Xiaocong Ye、Margaret M. Schweri
DOI:10.1021/jm061354p
日期:2007.5.1
[4.4.0]decanes (quinolizidines), which were envisioned as restricted rotational analogues (RRAs) of methylphenidate (MP), was synthesized and tested for inhibitory potency against [(3)H]WIN35,428, [3H]citalopram, and [3H]nisoxetine binding to the dopamine, serotonin, and norepinephrine transporters, respectively. Two different synthetic schemes were used; a Wittig reaction or acylation (followed by
合成了一系列的threo-1-aza-3或4-取代的5-苯基[4.4.0]癸烷(喹喔啉),它们被设想为哌醋甲酯(MP)的限制性旋转类似物(RRA),并进行了抑制性测试对[(3H)] WIN35,428,[3H]西酞普兰和[3H]尼西西汀分别与多巴胺,5-羟色胺和去甲肾上腺素转运蛋白结合的效力。使用了两种不同的合成方案。Wittig反应或酰化反应(随后是分子内缩合反应)是每种方案的关键特征。未取代的RRA,苏式(反式)-1-氮杂-5-苯基[4.4.0]癸烷(12a),与不受约束的苏式-MP等效于[(3)H] WIN35,428结合。这些RRA中的额外环(降低构象自由度)以及该额外环上4位取代基的方向和极性对于生物活性至关重要。通常,RRA在与三个转运蛋白的结合亲和力上与相应的不受约束的MP衍生物平行。结果表明,其中甲酯的羰基H键合到哌啶基NH的MP的构象可能是分子的生物活性形式。