6-Substituted-9-(3-formamidobenzyl)-9<i>H</i>-purines. Benzodiazepine receptor binding activity
作者:James L. Kelley、Ed W. Mclean、Robert M. Ferris、James L. Howard
DOI:10.1002/jhet.5570280444
日期:1991.6
A series of 6-substituted-9-(3-formamidobenzyl)purines were synthesized and studied for benzodiazepine receptor (BZR) binding activity. Most of the target compounds were prepared by reaction of 6-chloro-9-(3-formamidobenzyl)-9H-purine (17) with the appropriate amine, alcohol or other nucleophilic reagent. Alternatively, the 6-cyclopropylaminopurine 5 was synthesized via the nitrobenzyl precursor 22
合成了一系列的6-取代的-9-(3-甲酰胺基苄基)嘌呤,并研究了苯并二氮杂receptor受体(BZR)的结合活性。大多数目标化合物的通过6-氯-9-的反应而制备(3- formamidobenzyl)-9 ħ嘌呤(17)与适当的胺,醇或其它亲核试剂。可替代地,6-cyclopropylaminopurine 5合成通过硝基苄前体22,和6 -烷基-硫嘌呤14和15通过用3-甲酰胺基苄基溴烷基化适当的嘌呤来制备α-己内酰胺。具有某些6位取代基的嘌呤保留了强大的BZR结合特性,尽管某些笨重的6位取代基导致化合物的活性降低。在改良的Geller-Seifter冲突时间表上,没有一种化合物显示出显着的活性。