Aminobenzamide derivative

A compound represented by the formula (I):

• or a pharmaceutically acceptable salt thereof,
• wherein
• R1 is —S(O)p-A, —S—(O)q-B or —O-D, wherein p and q, which are the same or different, each represent an integer from 0 to 2, A is a straight chain C1-C10 alkyl group which may be substituted by R10, and B and D each independently represent R12 which may be substituted by R10;
• R2 is a hydrogen atom, a halogen atom, or a straight chain or branched C1-C6 alkyl group which may be substituted by R10;
• one of X1 or X2 is N and the other is CH;
• the formula (II):
• shows a monocyclic or bicyclic heteroaryl group which has a nitrogen atom adjacent to the carbon atom bonded to the amide group, and the heteroaryl group may be substituted by R10;
• R10 is R11, or a hydrocarbon group which may be substituted by R11;
• R11 is a hydrogen atom, amino, carbamoyl, carbamoylamino, carbamoyloxy, carboxyl, cyano, sulfamoyl, trifluoromethyl, a halogen atom, hydroxyl, formyl, straight chain C1-C6 alkyl, C3-C6 cyclic hydrocarbon, aralkyl, N-aralkylamino, N,N-diaralkylamino, aralkyloxy, aralkylcarbonyl, N-aralkylcarbamoyl, aryl, arylthio, N-arylamino, aryloxy, arylsulfonyl, arylsulfonyloxy, N-arylsulfonylamino, arylsulfamoyl, N-arylcarbamoyl, aroyl, aroxy, C2-C6 alkanoyl, N-C2-C6 alkanoylamino, C1-C6 alkylthio, N-C1-C6 alkylsulfamoyl, N,N-di-C1-C6 alkylsulfamoyl, C1-C6 alkylsulfinyl, C1-C6 alkylsulfonyl, N-C1-C6 alkylsulfonylamino, C1-C6 alkoxy, C1-C6 alkoxycarbonyl or C1-C6 alkylamino;
• and
• R12 is phenyl, naphthyl, isoxazolyl, isothiazolyl, imidazolyl, oxazolyl, thiazolyl, thiadiazolyl, thienyl, triazolyl, tetrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, pyrazolyl, pyrrolyl, pyranyl, furyl, furazanyl, imidazolidinyl, tetrahydrofuranyl, piperazinyl, piperidinyl, pyrrolidinyl, morpholino, isoquinolyl, isoindolyl, indolyl, ethylene dioxyphenyl, methylene dioxyphenyl, quinolyl, pyridothiazolyl, dihydroindolyl, tetrahydroquinolinyl, tetrahydroisoquinolinyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, benzotriazolyl or benzofuranyl.