Tricyclic pyrazoles. Part 8. Synthesis, biological evaluation and modelling of tricyclic pyrazole carboxamides as potential CB2 receptor ligands with antagonist/inverse agonist properties
作者:Valeria Deiana、María Gómez-Cañas、M. Ruth Pazos、Javier Fernández-Ruiz、Battistina Asproni、Elena Cichero、Paola Fossa、Eduardo Muñoz、Francesco Deligia、Gabriele Murineddu、Moisés García-Arencibia、Gerard A. Pinna
DOI:10.1016/j.ejmech.2016.02.005
日期:2016.4
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 =