A Versatile Enantioselective Synthesis of Barrenazines
作者:Miguel Peña-López、M. Montserrat Martínez、Luis A. Sarandeses、José Pérez Sestelo
DOI:10.1021/ol902920u
日期:2010.2.19
metathesis for the construction of the tetrahydropyridine ring and the preparation of a functionalized 4-azidopiperidin-5-one through a stereoselective epoxidation and regioselective ring-openingreaction. The C2-symmetrical pyrazine skeleton of barrenazines was prepared by dimerization of the azidopiperidinone, and the carbon side chain was completed by copper-catalyzed reactions using Grignard reagents