Synthesis of a Sodium–Hydrogen Exchange Type 1 Inhibitor: An Efficient Cu-Catalyzed Conjugated Addition of a Grignard Reagent to an Acetyl Pyridinium Salt
作者:Wenjun Tang、Nitinchandra D. Patel、Xudong Wei、Denis Byrne、Ashish Chitroda、Bikshandarkoil Narayanan、Alexander Sienkiewicz、Laurence J. Nummy、Max Sarvestani、Shengli Ma、Nelu Grinberg、Heewon Lee、Soojin Kim、Zhibin Li、Earl Spinelli、Bing-Shiou Yang、Nathan Yee、Chris H. Senanayake
DOI:10.1021/op300331b
日期:2013.3.15
facile and economical five-step process for the synthesis of a sodium–hydrogen exchange type I inhibitor (NHE-1) was developed from readily available starting materials in 43% overall yield. Key transformations included a highly efficient copper-catalyzed conjugate addition of 2-trifluoromethylphenyl Grignardreagents to acetyl pyridinium salts, a facile hydrogenation of 4-aryl dihydropyridines, a regioselective