Derivatives of 6-{4-[4-(1H-indole-2-sulphonyl)-piperazin-1-carbonyl-phenyl]}pyradizin-3-one

US7419979B2 · kind B2 · utility

Assignee

• ASTRAZENECA AB · SE

Inventors

• Emma BRATT · Timrå, SE
• Yantao Chen · Timrå, SE
• Kenneth Granberg · Mölndal, SE
• Ingemar Nilsson · Timrå, SE

Key dates

• Filing date: Jan 5, 2005
• Grant date: Sep 2, 2008
• Expiry date: Jan 5, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P9/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to heterocyclic derivatives of formula (I), wherein R2 is amino, a group OR4 or a group —Y—R5 where R4 is hydrogen or C1-4alkyl, Y is C1-4alkylene, R5 is hydrogen, halo, hydroxy, C1-2alkoxy, C1-2alkoxyC1-2alkoxyC1-4, or a group NR7R8 where R7 and R8 are independently selected from hydrogen, C1-2alkyl, hydroxyC1-2alkyl or alkoxyC1-2alkyl, or R7 and R8 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 R1 is independently selected from halo, haloC1-2alkyl, hydroxy, oxo, amino, C1-2alkylamino or di-C1-2dialkylamino; 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.