申请人:Nissan Chemical Industries, Ltd.
公开号:US05968967A1
公开(公告)日:1999-10-19
A pyrazolone derivative represented by general formula (I) or a salt thereof: ##STR1## [wherein one of X.sup.1 and X.sup.2 is ##STR2## (wherein A is a cyano group, a cyano C.sub.1-4 alkyl group, an amino group, an amino C.sub.1-4 alkyl group, an amidino group or a guanidino group, R.sup.1 and R.sup.2 are independently hydrogen atoms, halogen atoms, C.sub.1-6 alkyl groups or the like) or the like], the other of X.sup.1 and X.sup.2 is a C.sub.1-6 alkyl group, a C.sub.3-6 alkenyl group, an aryl C.sub.1-4 alkyl group or an aryl group, one of Y.sup.1 and Y.sup.2 is ##STR3## (wherein Q is an oxygen atom or a sulfur atom, Z.sup.1 is an oxygen atom, a --NR.sup.7 -- group or a --CHR.sup.7 -- group, Z.sup.2 is a cyclic C.sub.3-7 alkylene group, a C.sub.1-3 alkylene group, a --CH.sub.2 CO-- group or --CH.sub.2 CH.sub.2 CO-- group, Z.sup.3 is an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group or the like, Z.sup.4 is a C.sub.1-3 alkylene group, and Z.sup.5 is a carboxyl group or the like, and the other of Y.sup.1 and Y.sup.2 is a D-E- group [wherein E is a bond, a C.sub.1-4 alkylene group or a phenylene group, and D is a hydrogen atom, a C.sub.1-6 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.
通用公式(I)表示的吡唑酮衍生物或其盐:其中X.sup.1和X.sup.2中的一个是(其中A是氰基,氰基C.sub.1-4烷基,氨基,氨基C.sub.1-4烷基,酰胺基或胍基,R.sup.1和R.sup.2分别是氢原子,卤素原子,C.sub.1-6烷基或类似物)之一,另一个是C.sub.1-6烷基,C.sub.3-6烯基,芳基C.sub.1-4烷基或芳基,Y.sup.1和Y.sup.2中的一个是(其中Q是氧原子或硫原子,Z.sup.1是氧原子,-NR.sup.7-基团或-CHR.sup.7-基团,Z.sup.2是环状C.sub.3-7烷基基团,C.sub.1-3烷基基团,-CH.sub.2 CO-基团或-CH.sub.2 CH.sub.2 CO-基团,Z.sup.3是氧原子,硫原子,亚砜基,磺酰基或类似物,Z.sup.4是C.sub.1-3烷基基团,Z.sup.5是羧基或类似物,Y.sup.1和Y.sup.2中的另一个是D-E-基团(其中E是键,C.sub.1-4烷基或苯基,D是氢原子,C.sub.1-6烷基或类似物,对血小板聚集具有抑制作用,并且可用作各种血栓性疾病的预防或治疗剂。