4-[ω-[4-Arylpiperazin-1-yl]alkoxy]phenyl)imidazo[1,2-a]pyridine Derivatives: Fluorescent High-Affinity Dopamine D3 Receptor Ligands as Potential Probes for Receptor Visualization
摘要:
Sixteen long-chain arylpiperazines bearing the fluorescent moiety 2-phenylimidazo[1,2-a]pyridine were synthesized as fluorescent dopamine D-3 receptors ligands (385 nM < K-i < 0.72 nM). The most potent D-3 compounds 15a and 19a (K-i = 1.6 and 0.72 nM, respectively) showed good Stokes shift and high quantum yield in ethanol (Phi = 0.74 and 0.66, respectively). In the first attempt, 15a was unable to visualize D3 receptors expressed in CHO cells by epifluorescence microscopy.
The invention features pharmaceutically-active imidazopyridines and derivatives that are substituted with phenyl, methods of making them, and methods of using them.
本发明涉及一种具有药理活性的苯基取代的咪唑吡啶及其衍生物,制备方法和使用方法。
Ultrasound-Mediated Green Synthesis of Imidazo[1,2-a]pyridines and Imidazo[2,1-b]thiazoles through C(sp3)–H Functionalization
An ultrasound-assisted expedient protocol has been developed for the synthesis of imidazo[1,2-a]pyridines and imidazo[2,1-b]thiazoles by the C–H functionalization of ketones using a KI/tert-butyl hydroperoxide catalytic system. The reaction takes place in water, a green solvent, and does not require a metal catalyst; it also gives good yields of the products. The method offers numerous noteworthy characteristics
开发了一种超声辅助的简便方案,用于使用 KI/叔丁基过氧化氢催化系统通过酮的 C-H 官能化来合成咪唑并[1,2- a ]吡啶和咪唑并[2,1- b ]噻唑。反应在水这种绿色溶剂中进行,不需要金属催化剂;它还提供了良好的产品产量。该方法具有许多值得注意的特点,包括温和的反应条件、不存在碱、广泛的官能团兼容性和优异的反应产率。此外,它避免了使用昂贵且对空气敏感的化学品,并且可以在环境反应条件下进行。