A one-pot synthesis of tetrazolones from acid chlorides: understanding functional group compatibility, and application to the late-stage functionalization of marketed drugs
作者:Matthew A. J. Duncton、Rajinder Singh
DOI:10.1039/c6ob01644h
日期:——
The method could be used for the late-stage functionalization of pharmaceuticals, to provide tetrazolone congeners of the marketed drugs aspirin, indomethacin, probenecid, telmisartan, bexarotene, niacin (vitamin B3), and the active metabolite of the recently-launched immuno-modulatory agent, BG-12 (Tecfidera®). The ability of a tetrazolone group to serve as a bioisostere of a carboxylic acid, and
提出了使用叠氮基三甲基硅烷从一酰氯一锅且可扩展地合成四唑酮(四唑-5-酮)的方法。该反应可耐受许多官能团,并可以中等至极好的收率(14–94%)提供芳基,杂芳基,烯基或烷基取代的四唑酮产品。当反应规模较大时(20–36 g),未观察到收率降低。该方法可用于药物的后期功能化,以提供市售药物阿司匹林,消炎痛,丙磺舒,替米沙坦,倍沙罗汀,烟酸(维生素B3)以及最近推出的免疫调节剂的活性代谢产物的四唑酮同类物。剂,BG-12(Tecfidera ®)。还强调了四唑酮基团用作羧酸的生物等排体和改善药物药代动力学特征的能力。