cannabinoid receptors, and the series of tricyclic 1,4-dihydroindeno[1,2-c]pyrazoles emerged as potent CB2 receptor ligands. In the present study, novel 1,4-dihydroindeno[1,2-c]pyrazole and 1H-benzo[g]indazole carboxamides containing a cyclopropyl or a cyclohexyl substituent were designed and synthesized to evaluate the influence of these structural modifications towards CB1 and CB2 receptor affinities. Among
先前的研究已经研究了
吡唑衍
生物与
大麻素受体的相关性和构效关系(
SARs),并且出现了一系列
三环1,4-二氢
茚并[1,2- c ]
吡唑类化合物,这些化合物是有效的CB 2受体
配体。在本研究中,设计并合成了含有环丙基或环己基取代基的新型1,4-二氢
茚并[1,2- c ]
吡唑和1 H-苯并[ g ]
吲唑羧酰胺,以评估这些结构修饰对CB的影响1和CB 2受体亲和力。在这些衍
生物中,化合物15(6-环丙基-1-(2,4-二
氯苯基)-N-(
金刚烷-1-基)-1,4-二氢
茚并[1,2- c ]
吡唑-3-甲酰胺显示最高的CB 2受体亲和力(K i = 4 nM)和显着的选择性(K i CB 1 / K i CB 2 = 2232),而芬基基衍
生物(化合物10:K i = 6 nM),
冰片基类似物(化合物14:K i = 38 nM)和n范围内的亲和力相似。对于
氨基
哌啶衍
生物(化合物6:K i =