Patent ID: 8026232

Claim:
A benzothiophene oxide derivative represented by the following general formula or a salt thereof: wherein, R 1 and R 2 are the same or different and represent one or more groups selected from a hydrogen atom, a halogen atom, an alkyl, aryl, aralkyl, alkoxy, aryloxy, alkylthio, arylthio, alkenyl, alkenyloxy, amino, alkylsulfonyl, arylsulfonyl, carbamoyl or heterocyclic group which may be substituted, an amino, hydroxyl or carboxyl group which may be protected, a nitro group and an oxo group; R 3 represents an alkylamino group which may be substituted, an amino or hydroxyl group which may be protected; and m and n are the same or different and each represent an integer of 1 to 6.