analogs of 1 (compounds 2 and 3) were recently identified through a series of structure-activity relationship studies. Herein, we report the synthesis of radiolabeled analogs of these compounds using [11C]COCl2 and an evaluation of their potential as PET ligands for CB1 imaging using in vitro and in vivo techniques. [11C]2 and [11C]3 were successfully synthesized in two steps using [11C]COCl2. The radiochemical
大麻素1型受体(CB1)主要在大脑中表达,并在各种外周组织中以功能相关的浓度表达。1-(4-
氯苯基)-3-(3-(6-(
吡咯烷基-1-基)
吡啶-2-基)苯基)
脲(PSNCBAM- 1,1)被开发为CB1及其化合物的有效变构拮抗剂口服导致大鼠食欲和体重降低。最近通过一系列结构-活性关系研究确定了1的几种类似物(化合物2和3)。在这里,我们报告使用[ 11 C] COCl 2合成这些化合物的放射性标记类似物以及使用体外和体内技术评估它们作为CB1成像PET
配体的潜力。使用[ 11 C] COCl 2分两步成功合成了[ 11 C] 2和[ 11 C] 3。[ 11 C] 2和[ 11 C] 3的放射
化学产率分别为17±8%和20±9%(基于[ 11 C] CO 2,衰减校正至轰击结束)。[ 11 C] 2和[ 11 C] 3的具体活动分别为42±36和37±13 GBq /μmol。使用棕色