Patent number: 6326386
Abstract: The invention relates to a novel class of amide derivatives which act as thrombin inhibitors as described by formula (I), where R1 and R2, independently represent a group (a) or R1 and R2 together form a C3-7 heterocycloalkyl or heterocycloalkenyl group which may be optionally substituted by C1-6 alkyl, C1-4 alkoxy, halogen, carboxylic acid or a C1-4 carboxylic acid ester group; R3 represents hydrogen, C1-3 alkyl, halogen, or C1-2 alkoxy; R4, R5 and R6 independently represent hydrogen, or halogen; R7 represents hydrogen or C1-6 alkyl; R8 represents hydrogen, C3-7 cycloalkyl, C3-7 cycloalkenyl, C3-7 heterocycloalkyl, C3-7 heterocycloalkenyl, aryl or heteroaryl, which groups are optionally substituted by one or more groups selected from halogen, hydroxy, CN, C1-6 alkyl, C1-6 alkoxy, C1-6 acyloxy, NR9R10, NHCOR11, NHSO2R12, COR13, CO2R14, CONR15R16, and SO2NHR17; X represents a bond, a C1-6 alkyl chain, or a C3-6 alkenyl chain, where one or two nitrogen, oxygen, or sulfur atoms may be optionally contained within
Type:
Grant
Filed:
October 4, 2000
Date of Patent:
December 4, 2001
Assignee:
Glaxo Group Limited
Inventors:
Nigel Stephen Watson, Martin Pass, Vipulkumar Patel