The present invention relates compounds of the formula A
oligosaccharide-spacer-GpIIb/IIIa antagonist (A),
wherein
the oligosaccharide is a negatively charged oligosaccharide residue comprising four to twenty five monosaccharide units, the charge being compensated by positively charged counterions, and wherein the oligosaccharide residue is derived from an oligosaccharide which has (AT-III mediated) anti-Xa activity per se;
the spacer is a bond or an essentially pharmacologically inactive linking residue;
the GpIIb/IIIa antagonist is a residue mimicking the RGD and/or K(QA)GD fragment of fibrinogen, typically comprising an optionally esterified carboxylate moiety and a basic moiety located within the residue at a distance of 10-20 Å from each other;
or a pharmaceutically acceptable salt thereof or a prodrug or a solvate thereof.
The compounds of the invention have antithrombotic activity and can be used in treating or preventing thrombotic diseases.
本发明涉及以下公式A的化合物
寡糖-间隔-GpIIb/IIIa拮抗剂(A),
其中
寡糖是由四到二十五个
单糖单位组成的带负电的
寡糖残基,其电荷由带正电的对离子补偿,
寡糖残基来源于具有(AT-III介导的)抗Xa活性的
寡糖;
间隔是一种键或基本上是药理学上不活性的连接残基;
GpIIb/IIIa拮抗剂是模拟
纤维蛋白原的RGD和/或K(QA)GD片段的残基,通常包括一个可选择酯化的
羧酸基团和一个位于残基内距离为10-20埃的基本基团;
或其药学上可接受的盐或其前药或其溶剂化物。
本发明的化合物具有抗血栓活性,可用于治疗或预防血栓性疾病。