2,3-Disubstituted-4-hydroxyquinoline derivatives and process for preparing the same
申请人:MEIJI SEIKA KAISHA LTD.
公开号:EP0374765A1
公开(公告)日:1990-06-27
2, 3-disubstituted-4-hydroxyquinoline derivatives of the general formula (I):
[wherein R1 represents a hydrogen atom or R3CO- (wherein R3 is a lower alkyl group); R2 represents a hydrogen atom, -CH3 or C2Hs; A represents -CH2CH = CH-,
-CH = CHCH2 or CH2C ≡ C- ; and W represents a hydrogen atom, or 1 - 4 halogen atoms or alkyl groups which are substituted at the nucleus and may be the same or different] having the strong antagonistic action on leukotriene D4 is described. A process for preparing the derivatives is also described.
通式(I)的 2,3-二取代-4-羟基喹啉衍生物:
[其中 R1 代表氢原子或 R3CO-(其中 R3 为低级烷基);R2 代表氢原子、-CH3 或 C2Hs;A 代表-CH2CH=CH-、
-CH=CHCH2或CH2C≡C-;W代表氢原子,或1-4个卤素原子或在核上被取代的烷基,可以是相同的或不同的]。还描述了制备这些衍生物的工艺。