The Solid-Phase Zincke Reaction: Preparation of ω-Hydroxy Pyridinium Salts in the Search for CFTR Activation
作者:Masahiro Eda、Mark J. Kurth、Michael H. Nantz
DOI:10.1021/jo0001636
日期:2000.8.1
of structural modifications of MPB-07 was undertaken as part of a synthetic program aimed at discovering small molecules with CFTR activation potential. Solid-phase synthesis techniques were used to prepare derivatives of MPB-07 employing the Zincke reaction for the construction of aromatic, quaternary ammonium salts such as those found in 2 or 3. In this transformation, primary amines react with highly
作为一项合成计划的一部分,对MPB-07的结构修饰进行了研究,旨在发现具有CFTR活化潜能的小分子。使用Zincke反应,通过固相合成技术制备MPB-07衍生物,以构建芳香族季铵盐(如2或3中发现的那些盐)。在这种转化过程中,伯胺与高度亲电的N-2反应, 4-二硝基苯基吡啶鎓(DNP)盐4,得到吡啶鎓盐8,释放出2,4-二硝基苯胺6。因此,1-(2,4-二硝基苯基)吡啶鎓盐与各种与聚合物结合的氨基醚反应,然后裂解从树脂中以高收率和高纯度提供所需的盐。