申请人:Sandoz, Inc.
公开号:US04060533A1
公开(公告)日:1977-11-29
Pyranone carboxamides, e.g., 2,6-diphenyl-N-methyl-4-oxo-4H-pyran-3-carboxamide, are prepared by cyclizing and dehydrogenating 2-aminomethylene-5-hydroxy-N-methyl-3-oxo-alkylamides and are useful as anti-allergic agents.
吡喃酮羧酰胺,例如2,6-二苯基-N-甲基-4-氧代-4H-吡喃-3-羧酰胺,是通过环化和脱氢2-氨基亚甲基-5-羟基-N-甲基-3-酮基烷酰胺制备的,并且可用作抗过敏剂。