candidate nicotinoids. One of the two benzodioxane stereoisomers reasonably fits the pharmacophore elements of (S)-nicotine and binds at alpha4beta2 nicotinic acetylcholine receptor with submicromolar affinity. Interestingly, both the synthesized pyrrolidinylbenzodioxanes exhibit analogous affinity at alpha(2) adrenergic receptor resembling the behaviour of some known alpha(2)-AR ligands recently proved to
合成了分别在5-和2-位带有2-
吡咯烷基取代基的2-
恶唑烷酮和
1,4-苯并二恶烷的RS和SR对映体,作为候选
烟碱类化合物。两种苯并
二恶烷立体异构体之一合理地适合(S)-
尼古丁的药效团元素,并以亚微摩尔亲和力结合在α4beta2
烟碱型
乙酰胆碱受体上。有趣的是,两个合成的
吡咯烷基苯并
二恶烷在α(2)
肾上腺素能受体上都表现出相似的亲和力,类似于一些最近被证明具有神经元
烟碱亲和力的已知α(2)-AR
配体的行为。