Investigations on the 4-quinolone-3-carboxylic acid motif. 6. Synthesis and pharmacological evaluation of 7-substituted quinolone-3-carboxamide derivatives as high affinity ligands for cannabinoid receptors
作者:Serena Pasquini、Maria De Rosa、Alessia Ligresti、Claudia Mugnaini、Antonella Brizzi、Nicola P. Caradonna、Maria Grazia Cascio、Daniele Bolognini、Roger G. Pertwee、Vincenzo Di Marzo、Federico Corelli
DOI:10.1016/j.ejmech.2012.09.035
日期:2012.12
synthesized and evaluated for their binding ability to cannabinoid type 1 (CB1) and type 2 (CB2) receptors. Most of the compounds showed affinity for one or both cannabinoid receptors at nanomolar concentration, with Ki(CB1) and Ki(CB2) values ranging from 2.45 to >10,000 nM and from 0.09 to 957 nM, respectively. The N-(3,4-dichlorobenzyl)amide derivatives 27 and 40 displayed relatively low affinity, but high
在我们对4-喹诺酮-3-羧酰胺作为大麻素配体的结构-活性关系的研究中,合成了一系列新化合物,其特征是在7位为氟或苯硫基,在N1和羧酰胺氮上具有不同的取代基,并对其进行了评估。与1型大麻素(CB1)和2型大麻素(CB2)受体的结合能力。大多数化合物在纳摩尔浓度下均显示对一种或两种大麻素受体具有亲和力,其K i(CB1)和K i(CB2)值分别为2.45至> 10,000 nM和0.09至957 nM。所述ñ - (3,4-二氯苄基)酰胺衍生物27和40显示出相对较低的亲和力,但对CB1受体的选择性高。在[ 35 S]GTPγS分析中,化合物4和40分别为CB2和CB1配体充当部分激动剂。它们显示出极低的通过(MDCK-MDR1)细胞的渗透性,因此可能代表了可能的铅结构,可用于进一步优化寻找无法穿越血脑屏障的大麻素配体。