Synthesis of a series of 8-(substituted-phenyl)xanthines and a study on the effects of substitution pattern of phenyl substituents on affinity for adenosine A1 and A2A receptors
作者:Ranju Bansal、Gulshan Kumar、Deepika Gandhi、Louise C. Young、Alan L. Harvey
DOI:10.1016/j.ejmech.2008.10.017
日期:2009.5
A new series of 8-(substituted-phenyl)xanthines have been synthesized and compounds were evaluated for their affinity for A1 and A2 adenosine receptors (AR) using radioligand binding assays. The effects of varying the positions of 8-phenyl substituents on affinity and selectivity at A1 and A2A adenosine receptors have been studied. Isovanilloid 1,3-dimethyl-8-[4-methoxy-3-(2-morpholin-4-ylethoxy)phenylxanthine
已经合成了一系列新的8-(取代的苯基)黄嘌呤,并使用放射配体结合测定法评估了化合物对A 1和A 2腺苷受体(AR)的亲和力。已经研究了改变8-苯基取代基的位置对在A 1和A 2A腺苷受体上的亲和力和选择性的影响。异香草醛1,3-二甲基-8- [4-甲氧基-3-(2-吗啉-4-基乙氧基)苯基黄嘌呤(9d)对A 2A AR亚型的K i = 100 nM的亲和力和选择性超过A 1受体(Ki> 100 mM)。已经观察到,在8-苯基上的取代模式极大地影响在腺苷受体上的亲和力和选择性,与A 1受体相比,A 2A容忍更大的取代基。