申请人:NISSAN CHEMICAL INDUSTRIES, LIMITED
公开号:EP0742211A1
公开(公告)日:1996-11-13
Pyridazinone derivatives represented by the formula (I) and antiplatelet agents containing them:
[wherein R is a hydrogen atom or a C1-C4 alkyl group, X is a hydrogen atom, a chlorine atom or a bromine atom, Ar is a pyridyl group or a phenyl group substituted with OR1 (wherein R1 is a hydrogen atom or a C1-C4 alkyl group) and A wherein A is a hydrogen atom, a halogen atom, a C1-C4 alkyl group or OR2 (wherein R2 is a hydrogen atom or a C1-C4 alkyl group)}, Y is C1-C8 alkylene wherein one carbon atom on the straight chain is substituted with one OR1 group (wherein R1 is the same as defined above), and Z1 and Z2 are independently a hydrogen atom, a halogen atom, a C1-C4 alkyl group or a OR1 group (wherein R1 is the same as defined above)].
These compounds have strong antiplatelet effects, are excellently safe, and can be used as active ingredients of prophylactic and therapeutic drugs for various thrombotic diseases.
由式(I)代表的哒嗪酮衍生物和含有它们的抗血小板药物:
[其中 R 是氢原子或 C1-C4 烷基,X 是氢原子、氯原子或溴原子,Ar 是吡啶基或被 OR1(其中 R1 是氢原子或 C1-C4 烷基)取代的苯基和 A 其中 A 是氢原子、卤素原子、C1-C4 烷基或 OR2(其中 R2 是氢原子或 C1-C4 烷基)}、Y 是 C1-C8 亚烷基,其中直链上的一个碳原子被一个 OR1 基团取代(其中 R1 与上述定义相同),Z1 和 Z2 独立地为氢原子、卤素原子、C1-C4 烷基或 OR1 基团(其中 R1 与上述定义相同)]。
这些化合物具有很强的抗血小板作用,安全性极高,可用作各种血栓性疾病的预防和治疗药物的活性成分。