Structure activity relationship of 2-arylalkynyl-adenine derivatives as human A<sub>3</sub> adenosine receptor antagonists
作者:Jinha Yu、Philip Mannes、Young-Hwan Jung、Antonella Ciancetta、Amelia Bitant、David I. Lieberman、Sami Khaznadar、John A. Auchampach、Zhan-Guo Gao、Kenneth A. Jacobson
DOI:10.1039/c8md00317c
日期:——
Recognition of nucleosides at adenosine receptors (ARs) is supported by multiple X-ray structures, but the structure of an adenine complex is unknown. We examined the selectivity of predicted A1AR and A3AR adenine antagonists that incorporated known agonist affinity-enhancing N 6 and C2 substituents. Adenines with A1AR-favoring N 6-alkyl, cycloalkyl and arylalkyl substitutions combined with an A3AR-favoring
多个X射线结构支持在腺苷受体(ARs)上识别核苷,但腺嘌呤复合物的结构尚不清楚。我们检查了结合已知激动剂亲和力增强N 6和C2取代基的预测的A1AR和A3AR腺嘌呤拮抗剂的选择性。具有A1AR偏爱的N 6-烷基,环烷基和芳基烷基取代基与A3AR偏爱的2-(((5-氯噻吩-2-基)乙炔基)基团结合的腺嘌呤是人(h)A3AR选择性的,例如MRS7497 17(〜1000 -超过A1AR)。另外,证明了对hA2AAR和hA2BAR的结合选择性和功能性A3AR拮抗作用。17在hA3AR同源性模型中进行了计算对接和分子动力学模拟,以预测相互作用。腺嘌呤AR拮抗剂未概括核苷AR激动剂的SAR,