The present invention relates to modulators of ATP-Binding Cassette (“ABC”) transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator (“CFTR”), compositions thereof, and methods therewith. The present invention also relates to methods of treating ABC transporter mediated diseases using such modulators.
sulfinate salts, and, more importantly, providing access to electron-rich pyridine substrates. Sulfonylated pyridines were synthesized in moderate to excellent yields, with a wide scope of substituted pyridines and sulfinate salts as starting materials, by an iron-catalyzed SNAr reaction. This new methodology exhibits advantages for the synthesis of these useful substrates, such as the use of a readily
摘要 磺酰化吡啶通过铁催化的S N Ar反应以中等至优异的产率合成,并以广泛范围的取代吡啶和亚磺酸盐为起始原料。这种新方法显示出合成这些有用底物的优点,例如使用易于获得的廉价催化剂,防止亚磺酸盐歧化,更重要的是,提供了接触富电子吡啶底物的途径。 磺酰化吡啶通过铁催化的S N Ar反应以中等至优异的产率合成,并以广泛范围的取代吡啶和亚磺酸盐为起始原料。这种新方法显示出合成这些有用底物的优点,例如使用易于获得的廉价催化剂,防止亚磺酸盐歧化,更重要的是,提供了接触富电子吡啶底物的途径。
A Practical, One-Pot Synthesis of Sulfonylated Pyridines
作者:Kevin M. Maloney、Jeffrey T. Kuethe、Kathleen Linn
DOI:10.1021/ol102629c
日期:2011.1.7
A concise and efficient one-pot synthesis of functionalized sulfonylated pyridines via an SNAr reaction of readily available pyridines and sodium sulfinate salts in the presence of tetrabutylammonium chloride is presented.