Design, synthesis, and biological evaluation of F-18-labelled 2, 4-diaminopyrimidine-type FAK-targeted inhibitors as potential tumour imaging agents
作者:Yueheng Qi、Ye Li、Yu Fang、Bingchao Qiang、Hang Gao、Shuxia Wang、Huabei Zhang
DOI:10.1016/j.bmcl.2020.127452
日期:2020.10
21.6 nM, were labelled by 18F, accompanied by evaluation of their biodistributions. For [18F]Q-2, at 30 min post-injection, promising target-to-nontarget ratios were observed, associated with tumour/blood, tumour/muscle, and tumour/bone ratios of 1.17, 2.99 and 2.19, respectively. The results indicated that [18F]Q-2 is a potential PET tracer for tumour diagnosis.
作为细胞内非受体酪氨酸激酶的一种,粘着斑激酶(FAK)可以在大多数类型的肿瘤中高度表达,因此被认为是有希望的抗肿瘤靶标。在这项研究中,设计,合成并通过1 H NMR,13 C HNMR和HRMS光谱对一系列新型的以2,4-二氨基嘧啶FAK靶向的抑制剂进行了表征。这些化合物的IC 50范围为5.0-205.1 nM,显示出对FAK的优异抑制活性。两种化合物[ 18 F] Q-2和[ 18 F] Q-4的IC 50值分别为5.0 nM和21.6 nM,用18标记。F,伴随对其生物分布的评估。对于[ 18 F] Q-2,在注射后30分钟时观察到有希望的靶与非靶比,分别与肿瘤/血液,肿瘤/肌肉和肿瘤/骨骼比分别为1.17、2.99和2.19相关。结果表明[ 18 F] Q-2是用于肿瘤诊断的潜在PET示踪剂。