发明名称 |
Pyridazinone derivatives, processes for production thereof and use thereof. |
摘要 |
Pyridazinone derivatives of formula (I): <CHEM> wherein R<1> represents a hydrogen atom or a methyl group which may be substituted with an aliphatic cyclic amino group optionally containing a hetero atom in the ring thereof; each of X<1> and X<2> independently represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a cyano group, a nitro group or a group shown by - CO-NR<2>R<3> (wherein each of R<2> and R<3> independently represents an alkyl group having 1 to 6 carbon atoms); Y represents a halogen atom; Z represents an alkoxy group having 1 to 6 carbon atoms; l represents 0 or an integer of 1 to 3; A represents CH or N; m represents 0 or an integer of 1 or 2; and n represents an integer of 1 to 8, exhibit a platelet aggregation inhibiting activity and are useful for the treatment of circulatory disorders such as cerebral infarction. |
申请公布号 |
EP0658555(A1) |
申请公布日期 |
1995.06.21 |
申请号 |
EP19940119888 |
申请日期 |
1994.12.15 |
申请人 |
NIHON NOHYAKU CO., LTD. |
发明人 |
KAGAWA, TAKASHI;MOTOKAWA, TAKUYA;YOSHIDA, MASANORI;OSHITA, YOSHITAMI;KANAI, KAZUO |
分类号 |
C07D237/22;C07D401/12 |
主分类号 |
C07D237/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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