The invention relates to heterocyclic derivatives of formula (I), wherein R
2
is amino, a group OR
4
or a group —Y—R
5
where R
4
is hydrogen or C
1-4
alkyl, Y is C
1-4
alkylene, R
5
is hydrogen, halo, hydroxy, C
1-2
alkoxy, C
1-2
alkoxyC
1-2
alkoxyC
1-4
, or a group NR
7
R
8
where R
7
and R
8
are independently selected from hydrogen, C
1-2
alkyl, hydroxyC
1-2
alkyl or alkoxyC
1-2
alkyl, or R
7
and R
8
together with the nitrogen atom to which they are attached form a saturated 5-6-membered heterocyclic ring which optionally contains an additional heteroatom; n is one or two and each R
1
is independently selected from halo, haloC
1-2
alkyl, hydroxy, oxo, amino C
1-2
alkylamino or di-C
1-2
dialkylamino; or a pharmaceutically acceptable salt thereof. These compounds possess antithrombotic and anticoagulant properties and are accordingly useful in methods of treatment of humans or animals. The invention also relates to processes for the preparation of the heterocyclic derivatives, to pharmaceutical compositions containing them and to their use in the manufacture of medicaments for use in the production of an antithrombotic or anticoagulant effect.
本发明涉及式(I)的杂环衍
生物,其中R2是
氨基,OR4基团或-Y-R5基团,其中R4是氢或C1-4烷基,Y是C1-4亚烷基,R5是氢,卤素,羟基,C1-2烷氧基,C1-2烷氧基C1-2烷氧基C1-4,或NR7R8基团,其中R7和R8各自选自氢,C1-2烷基,羟基C1-2烷基或烷氧基C1-2烷基,或R7和R8与它们所连接的氮原子一起形成一个饱和的5-6元杂环环,其中可以含有一个额外的杂原子;n是1或2,每个R1独立地选自卤素,卤素C1-2烷基,羟基,氧代,
氨基C1-2烷基
氨基或二C1-2二烷基
氨基;或其药学上可接受的盐。这些化合物具有抗血栓和抗凝作用,因此在人类或动物的治疗方法中有用。本发明还涉及制备这些杂环衍
生物的方法,含有它们的药物组合物以及它们在制造用于产生抗血栓或抗凝效果的药物的制剂中的使用。