Patent ID: 7183271

Claim:
A 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine-compound represented by a formula (I) or a pharmaceutically acceptable salt thereof wherein the symbols have the following meanings: R 1 : amino which may be substituted, —OH or O-lower alkyl, R 2 : CF 3 or halogen, R 3 : H or halogen, a, b: each represents single bond or double bond, wherein one is single bond and the other is double bond, —X—: (1) —CH═CH—, —CH═N—, —N═CH—, —N═N— or —S— when a is single bond and b is double bond, (2) —N— when a is double bond and b is single bond, Y: (1) CH or N when a is single bond and b is double bond, (2) S when a is double bond and b is single bond, -A-: —O—, —S—, —NH— or —N(lower alkyl), and B: lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl or aryl, each of which may be substituted.