N-(phenyl) or n-(phenylcyclopropyl)-2,5-dihydro-2-oxo-4, (substituted phenyl) amino-3-furancarboxamide derivatives
申请人:PENNWALT CORPORATION
公开号:EP0237028A1
公开(公告)日:1987-09-16
In accordance with this invention there are provided compounds of the formula
wherein R is selected from phenyl and phenyl mono-or disubstituted with lower alkyl, nitro, halogenated methyl, halogen, lower alkoxy and combinations thereof,
wherein R¹ is selected from hydrogen and lower alkyl; and
wherein R² is selected from phenyl, phenyl monosubstituted with lower alkyl, nitro, halogenated methyl, halogen and lower alkoxy, and trans-phenylcyclopropyl in which the phenyl group may be substituted with lower alkyl and halogen,
and a process for the production thereof. The compounds show an antiallergic activity.
根据本发明,提供了如下式子的化合物
其中R选自苯基和与低级烷基、硝基、卤代甲基、卤素、低级烷氧基及其组合单取代或二取代的苯基、
其中 R¹ 选自氢和低级烷基;以及
其中 R² 选自苯基、与低级烷基、硝基、卤代甲基、卤素和低级烷氧基单取代的苯基和反式苯基环丙基,其中苯基可被低级烷基和卤素取代、
及其生产工艺。这些化合物具有抗过敏活性。