New Analgesics Synthetically Derived from the Paracetamol Metabolite <i>N</i>-(4-Hydroxyphenyl)-(5<i>Z</i>,8<i>Z</i>,11<i>Z</i>,14<i>Z</i>)-icosatetra-5,8,11,14-enamide
作者:Christian Sinning、Bernhard Watzer、Ovidiu Coste、Rolf M. Nüsing、Ingo Ott、Alessia Ligresti、Vincenzo Di Marzo、Peter Imming
DOI:10.1021/jm800807k
日期:2008.12.25
N-(4-hydroxyphenyl)-(5Z,8Z,11Z,14Z)-icosatetra-5,8,11,14-enamide (AM404) is a metabolite of the well-known analgesic paracetamol. AM404 inhibits endocannabinoid cellular uptake, binds weakly to CB1 and CB2 cannabinoid receptors, and is formed by fatty acid amide hydrolase (FAAH) in vivo. We prepared three derivatives of this new (endo)cannabinoid using bioisosteric replacement (1), homology (2), and derivatization (3)
N-(4-羟基苯基)-(5Z,8Z,11Z,14Z)-二十碳五,8,11,14-酰胺(AM404)是众所周知的止痛药扑热息痛的代谢产物。AM404抑制内源性大麻素的细胞摄取,与CB1和CB2大麻素受体弱结合,并由体内的脂肪酸酰胺水解酶(FAAH)形成。我们使用AM404中4-氨基苯酚部分的生物立体置换(1),同源性(2)和衍生化(3),制备了这种新的(内切)大麻素的三种衍生物,并针对CB1,CB2和FAAH进行了测试。我们发现对两种大麻素受体的亲和力等于或大于AM404。从C20到C2的酰基链缩短导致了三个新的扑热息痛类似物:N-(1H-吲唑-5-基)乙酰胺(5),N-(4-羟基苄基)乙酰胺(6)和N-(4-羟基-3-甲氧基苯基)乙酰胺(7)。同样,分别针对CB1,CB2、5、6和7进行了测试,和FAAH,没有明显的活动。但是,在全血测定中,5和7表现得像环氧合酶抑制剂。最后,在小鼠福尔马林测试中,5(50