| abstract |
The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: n n nwherein R 1 is an optionally substituted lower alkyl group, an optionally substituted lower alkoxy group, an optionally substituted lower alkenyl group, a cycloalkyl group or a lower acyl group etc.; nQ is a hydrogen atom or an optionally substituted lower alkyl group; and Z is a hydrogen atom or a hydroxy group etc., or a pharmaceutically acceptable salt thereof, which exert a potent and selective activated blood coagulation factor X inhibitory activity and is useful as an agent for the prevention or treatment of a disease occurred associating an activated blood coagulation factor X, a pharmaceutical composition comprising the same and an intermediate thereof. These compounds are useful as preventives or remedies for various diseases such as brain infarction, cerebral thrombosis, cerebral embolism, TIA, cerebral vascular jerk, Alzheimer's diseases, myocardial infarction, heart attack, heart failure, thrombosis, pulmonary infarction and pulmonary embolism. |