Radiosynthesis of novel carbon-11-labeled triaryl ligands for cannabinoid-type 2 receptor
作者:Masayuki Fujinaga、Katsushi Kumata、Kazuhiko Yanamoto、Kazunori Kawamura、Tomoteru Yamasaki、Joji Yui、Akiko Hatori、Masanao Ogawa、Yuichiro Yoshida、Nobuki Nengaki、Jun Maeda、Ming-Rong Zhang
DOI:10.1016/j.bmcl.2010.01.074
日期:2010.3
with potent in vitro binding affinities for the cannabinoid subtype-2 (CB2) receptor were labeled with a positron-emitting radioactive nuclide 11C. Radioligands [11C]2, [11C]5, and their analogs [11C]3 and [11C]4 were synthesized by O-[11C]methylation of their corresponding phenol precursors with [11C]CH3I. [11C]2–5 had relatively high uptakes (>1.2% injected dose/g tissue) in mouse brains.
具有两个对大麻素亚型2(CB2)受体具有强大体外结合亲和力的新型三芳基配体2和5用发射正电子的放射性核素11 C标记。放射性配体[ 11 C] 2,[ 11 C] 5及其它们通过[ 11 C] CH 3 I对相应的苯酚前体进行O- [ 11 C]甲基化,合成了类似物[ 11 C] 3和[ 11 C] 4。 [ 11 C] 2 – 5 在老鼠的大脑中具有相对较高的摄取(> 1.2%注射剂量/ g组织)。