Patent ID: 8236841

Claim:
A fused heterocycle compound represented by formula (I): wherein R 1 represents optionally substituted lower alkyl, or optionally substituted cycloalkyl; R 2 represents optionally substituted cycloalkyl, or an optionally substituted aliphatic heterocyclic group; R 3 represents (i) —C(═Z) R 4 (wherein R 4 represents optionally substituted lower alkyl, optionally substituted lower alkenyl, optionally substituted cycloalkyl, optionally substituted aralkyl, optionally substituted aryl, an optionally substituted heteroaromatic group, or an optionally substituted aliphatic heterocyclic group, and Z represents an oxygen atom or a sulfur atom), or (ii) —C(═Z)NR 5 R 6 (wherein R 5 and R 6 may be the same or different and each represents a hydrogen atom, optionally substituted lower alkyl, optionally substituted lower alkenyl, optionally substituted cycloalkyl, optionally substituted aralkyl, optionally substituted aryl, an optionally substituted heteroaromatic group, or an optionally substituted aliphatic heterocyclic group or R 5 and R 6 together with the adjacent nitrogen atom thereto form an optionally substituted nitrogen-containing heterocyclic group, and Z has the same definition as described above); n represents an integer of 1 to 3; and W represents a nitrogen atom or C—R 15 (wherein R 15 represents a hydrogen atom, halogen or lower, alkyl), or a pharmaceutically acceptable salt thereof.