作者:James L. Kelley、Ed W. McLean、Robert M. Ferris、James L. Howard
DOI:10.1021/jm00169a013
日期:1990.7
Several alpha-methyl analogues of the 9-benzylpurines that bind to the benzodiazepine receptor (BZR) were synthesized and tested for BZR-binding activity. Although introduction of a m-amino group and an 8-bromo substituent gave an additive increase in BZR affinity with 9-(3-aminobenzyl)-8-bromo-6-(dimethylamino)-9H-purine (4), addition of an alpha-methyl group to 4 resulted in a loss in BZR affinity
合成了与苯并二氮杂receptor受体(BZR)结合的几种9-苄基嘌呤的α-甲基类似物,并测试了BZR结合活性。尽管引入间氨基和8-溴取代基使得与9-(3-氨基苄基)-8-溴-6-(二甲基氨基)-9H-嘌呤(4)的BZR亲和力增加,但添加了α-甲基至4导致BZR亲和力下降。这种亲和力的损失显然是由于8-溴和9-(1-苯乙基)取代基之间的排斥性空间相互作用,这导致了对于与BZR相互作用并非最佳的构象。在改良的Geller-Seifter冲突时间表上测试了几种化合物,但均未显示出明显的抗焦虑活性。