Development of a new epidermal growth factor receptor positron emission tomography imaging agent based on the 3-cyanoquinoline core: Synthesis and biological evaluation
作者:Federica Pisaneschi、Quang-De Nguyen、Elham Shamsaei、Matthias Glaser、Edward Robins、Maciej Kaliszczak、Graham Smith、Alan C. Spivey、Eric O. Aboagye
DOI:10.1016/j.bmc.2010.08.004
日期:2010.9
97 ± 9.06 nM), low lipophilicity and good metabolic stability. ‘Click’ labeling afforded [18F]16 in 37.0 ± 3.6% decay corrected radiochemical yield based on azide [18F]14 and 7% end of synthesis (EOS) yield from aqueous fluoride. Compound [18F]16 was obtained with >99% radiochemical purity in a total synthesis time of 3 h. The compound showed good stability in vivo and a fourfold higher uptake in high
表皮生长因子受体 (EGFR/c-ErbB1/HER1) 在许多癌症中过度表达,包括乳腺癌、卵巢癌、子宫内膜癌和非小细胞肺癌。EGFR 特异性显像剂可以促进原发肿瘤和/或转移瘤的临床评估。为了实现这一目标,我们设计并合成了一系列基于 3-氰基喹啉核心的含氟化合物。铅化合物,16,结合-2'-氟乙基-1,2,3-三唑被选择用于评价作为基于其对EGFR高亲和力放射性配体激酶(IC 50 = 1.81±0.18 nM)的,良好的细胞效力(IC 50 = 21.97 ± 9.06 nM),低亲脂性和良好的代谢稳定性。提供“点击”标签 [ 18 F] 16在基于叠氮化物 [ 18 F] 14 的37.0 ± 3.6% 衰减校正放射化学收率和来自氟化物水溶液的 7% 合成结束 (EOS) 收率。在3小时的总合成时间内以>99%的放射化学纯度获得化合物[ 18 F] 16。与低表达 EGFR 的 HCT116