Patent ID: 7001887

Claim:
A compound of Formula (1): wherein R 1 represents a group selected from the following formulae: wherein R 8 represents an amino group, an aminomethyl group or (wherein R 9 represents a hydrogen atom, an amino group, a hydroxy group, an acyl group or an alkoxycarbonyl group having an optionally substituted linear or branched C 1 -C 6 alkyl as its alkyl moiety, R 10 represents an amino group, one of X and Y represents ═CH— and the other represents ═N—); R 2 represents a hydrogen atom or a linear or branched C 1 -C 6 alkyl group; R 3 represents: or —(CH 2 ) m —R 11 wherein m represents an integer of 1 to 6, and R 11 represents: (wherein R 12 represents a hydrogen atom or a linear or branched C 1 -C 3 alkyl group) or R 4 represents a hydrogen atom or a linear or branched C 1 -C 6 alkyl group; R 5 represents a linear or branched C 1 -C 6 alkyl group or —CH 2 —R 13 (wherein R 13 represents an optionally substituted aryl group or an optionally substituted heterocyclic group); R 6 represents a hydrogen atom or a linear or branched C 1 -C 6 alkyl group; and R 7 represents an optionally substituted linear or branched C 1 -C 6 alkyl group or —SO 2 —R 14 (wherein R 14 represents an optionally substituted linear or branched C 1 -C 8 alkyl group) or a tautomer or enantiomer of the compound, or a hydrate or pharmaceutically acceptable salt thereof.