申请人:NISSAN CHEMICAL INDUSTRIES, LIMITED
公开号:EP0987253A1
公开(公告)日:2000-03-22
A pyrazolone derivative represented by general formula (I) or a salt thereof:
[wherein one of X1 and X2 is
(wherein A is a cyano group, a cyano C1-4 alkyl group, an amino group, an amino C1-4 alkyl group, an amidino group or a guanidino group, R1 and R2 are independently hydrogen atoms, halogen atoms, C1-6 alkyl groups or the like) or the like,
the other of X1 and X2 is a C1-6 alkyl group, a C3-6 alkenyl group, an aryl C1-4 alkyl group or an aryl group,
one of Y1 and Y2 is
(wherein Q is an oxygen atom or a sulfur atom, Z1 is an oxygen atom, a -NR7- group or a -CHR7- group, Z2 is a cyclic C3-7 alkylene group, a C1-3 alkylene group, a -CH2CO- group or -CH2CH2CO- group, Z3 is an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group or the like, Z4 is a C1-3 alkylene group, and Z5 is a carboxyl group or the like, and
the other of Y1 and Y2 is a D-E- group [wherein E is a bond, a C1-4 alkylene group or a phenylene group, and D is a hydrogen atom, a C1-6 alkyl group or the like which has an inhibitory action on platelet aggregation and is useful as a preventive or therapeutic agent for various thrombotic diseases.
通式(I)代表的吡唑酮衍生物或其盐:
[其中 X1 和 X2 之一为
(其中 A 为氰基、氰基 C1-4 烷基、氨基、氨基 C1-4 烷基、脒基或胍基,R1 和 R2 独立地为氢原子、卤素原子、C1-6 烷基或类似基团)或类似基团、
X1 和 X2 中的另一个是 C1-6 烷基、C3-6 烯基、C1-4 芳基或芳基、
Y1 和 Y2 中的一个是
(其中 Q 是氧原子或硫原子,Z1 是氧原子、-NR7- 基团或 -CHR7- 基团,Z2 是环 C3-7 亚烷基、C1-3 亚烷基、-CH2CO- 基团或 -CH2CH2CO- 基团,Z3 是氧原子、硫原子、亚砜基、磺酰基或类似基团,Z4 是 C1-3 亚烷基,Z5 是羧基或类似基团,以及
Y1和Y2中的另一个是D-E-基团[其中E是键、C1-4亚烷基或亚苯基,D是氢原子、C1-6烷基或类似物,对血小板聚集有抑制作用,可作为各种血栓性疾病的预防或治疗剂。