申请人:Sunovion Pharmacuticals Inc.
公开号:US08097760B2
公开(公告)日:2012-01-17
This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
这项发明提供了一种将肟转化为烯酰胺的便捷方法。该过程不需要使用金属试剂。因此,它可以生产所需化合物而不会产生大量的金属废料。烯酰胺是制备酰胺和胺的有用前体。该发明提供了一种将原始手性烯酰胺转化为相应手性酰胺的方法。在示例过程中,通过使用手性氢化催化剂,在氢化过程中引入手性氨基中心。在选定的实施例中,该发明提供了制备酰胺和胺的方法,其中包括1,2,3,4-四氢-N-烷基-1-萘胺或1,2,3,4-四氢-1-萘胺亚结构。