Use of an Iridium-Catalyzed Redox-Neutral Alcohol-Amine Coupling on Kilogram Scale for the Synthesis of a GlyT1 Inhibitor
作者:Martin A. Berliner、Stéphane P. A. Dubant、Teresa Makowski、Karl Ng、Barbara Sitter、Carrie Wager、Yinsheng Zhang
DOI:10.1021/op200174k
日期:2011.9.16
synthesis of aliphatic amines is the transition-metal-catalyzed redox-neutral coupling of an alcohol and an amine, generally referred to as a “borrowing hydrogen” reaction. In this work, we describe the first kilogram-scale application of this technology in the synthesis of PF-03463275, a GlyT1 inhibitor developed for the treatment of schizophrenia. Using (Cp*IrCl2)2 the reaction has been optimized to
有效和环境友好的脂肪族胺合成的最新进展是醇和胺的过渡金属催化的氧化还原-中性偶联,通常称为“借用氢”反应。在这项工作中,我们描述了该技术在合成PF-03463275(一种用于治疗精神分裂症的GlyT1抑制剂)的合成中的首次千克规模应用。使用(Cp * IrCl 2)2该反应已经过优化,以实现催化剂负载量低于0.05 mol%铱(S / C≥2000),同时保持合理的反应时间(<24 h)。水和叔胺对于高催化活性是必不可少的,与现有文献方法相比,可显着提高反应速度。还描述了除去铱的方法。