Development of 2-(2-(3-(4-([<sup>18</sup>F]Fluoromethoxy-<i>d</i><sub>2</sub>)phenyl)-7-methyl-4-oxo-3,4-dihydroquinazolin-2-yl)ethyl)-4-isopropoxyisoindoline-1,3-dione for Positron-Emission-Tomography Imaging of Phosphodiesterase 10A in the Brain
作者:Wakana Mori、Tomoteru Yamasaki、Masayuki Fujinaga、Masanao Ogawa、Yiding Zhang、Akiko Hatori、Lin Xie、Katsushi Kumata、Hidekatsu Wakizaka、Yusuke Kurihara、Takayuki Ohkubo、Nobuki Nengaki、Ming-Rong Zhang
DOI:10.1021/acs.jmedchem.8b01366
日期:2019.1.24
disorders. 2-(2-(3-(4-([18F]Fluoroethoxy)phenyl)-4-oxo-3,4-dihydroquinazolin-2-yl)ethyl)-4-isopropoxyisoindoline-1,3-dione ([18F]MNI-659, [18F]5) is a useful positron-emission-tomography (PET) ligand for imaging of PDE10A in the human brain. However, the radiolabeled metabolite of [18F]5 can accumulate in the brain. In this study, using [18F]5 as a lead compound, we designed four new 18F-labeled ligands
磷酸二酯酶10A(PDE10A)是新近确定的中枢神经系统疾病的治疗靶标。2-(2-(3-(4-([ 18 F]氟乙氧基)苯基)-4-氧代-3,4-二氢喹唑啉-2-基)乙基)-4-异丙氧基异吲哚啉-1,3-二酮([ 18 F] MNI-659,[ 18 F] 5)是用于在人脑中对PDE10A成像的有用的正电子发射断层扫描(PET)配体。但是,[ 18 F] 5的放射性标记代谢物会在大脑中积聚。在这项研究中,我们以[ 18 F] 5为先导化合物,设计了四个新的18 F标记的配体([ 18 F] 6 – 9)找到比[ 18 F] 5更合适的一种。其中,2-(2-(3-(4-([[ 18 F]氟甲氧基-d 2)苯基)-4-氧代-3,4-二氢喹唑啉-2-基)乙基)-4-异丙氧基异吲哚啉-1, 3-二酮([ 18 F] 9)对PDE10A表现出高的体外结合亲和力(K i = 2.9 nM)和合适的亲脂性(log