Synthesis and Characterization of 5-Hydroxy-2-(2-phenylethyl)chromone (5-HPEC) and Its Analogues as Non-nitrogenous 5-HT<sub>2B</sub> Ligands
作者:Dwight A. Williams、Saheem A. Zaidi、Yan Zhang
DOI:10.1021/acs.jnatprod.5b00118
日期:2015.8.28
nitrogen-containing compounds. The natural product 5-hydroxy-2-(2-phenylethyl)chromone (5-HPEC, 5) has been shown previously to act as a non-nitrogenous antagonist for the 5-HT2B receptor (pKi = 5.6). This report describes further progress on the study of the structure–activity relationship of both naturally occurring and synthetic compounds bearing the 2-(2-phenylethyl)chromone scaffold at the 5-HT2B receptor. The
神经递质5-羟色胺(5-HT)参与多种生理功能通常归因于与之相互作用的受体的多样性。靶向血清素2B(5-HT 2B)的配体因其潜在的帮助理解5-HT 2B在偏头痛,药物滥用,神经退行性疾病和肠易激综合症中的作用而引起了新的兴趣。迄今为止,大多数靶向5-HT 2B的配体都是含氮化合物。天然产物5-羟基-2-(2-苯基乙基)色酮(5-HPEC,5)先前已显示出可作为5-HT 2B受体的非氮拮抗剂(p K i= 5.6)。该报告描述了在5-HT 2B受体上带有2-(2-苯乙基)色酮骨架的天然和合成化合物的结构-活性关系研究的进一步进展。测试了新合成的化合物(10μM)对每种5-HT 2受体的抑制活性。在该测定之后,然后在5-HT 2B处评估最有希望的化合物的结合亲和力和拮抗作用。在所有类似物中,出现了5-羟基-2-(2-苯基丙基)苯甲酮(5-HPPC,22h)作为一种新的先导化合物,与5-HPEC相比,亲和力提高了10倍(p