作者:Atmaram D. Khanolkar、Vasiliki Abadji、Sonyuan Lin、W. Adam G. Hill、Gihan Taha、Khaled Abouzid、Zhaoxing Meng、Pusheng Fan、Alexandros Makriyannis
DOI:10.1021/jm960152y
日期:1996.1.1
carbonyl oxygen by a sulfur atom had a detrimental effect on the CB1 affinity. The thio analogs of both anandamide and (R)-methanandamide showed very weak affinity for CB1. The secondary nature of the amidic nitrogen was also shown to be important for affinity, indicating a possible hydrogen-bonding interaction between the amide NH and the receptor. Introduction of a phenolic moiety in the head group
合成了内源性大麻素的几种类似物花生四烯基乙醇酰胺(anandamide),以研究乙醇酰胺首基的结构要求。通过标准的受体结合测定法,使用tri化的CP-55,940作为放射性配体,评估了类似物的CB1受体亲和力,并与Kan为78 nM的anandamide进行了比较。用硫原子取代酰胺羰基氧对CB1亲和力有不利影响。anandamide和(R)-methanandamide的硫代类似物对CB1的亲和力很弱。还显示了酰胺氮的次要性质对于亲和力很重要,表明酰胺NH与受体之间可能存在氢键相互作用。在头部基团中引入酚部分会导致受体亲和力的损失,除非在the基氮和酚之间引入亚甲基间隔基。还使用小鼠脾制剂测试了一组类似物对CB2受体的亲和力,发现它们对CB2位点的亲和力低。值得注意的是,anandamide和(R)-methanandamide对CB1受体表现出很高的选择性。总体而言,此处提供的数据表明,