Patent ID: 8557805

Claim:
A compound represented by the formula (I): wherein ring A is a 6-membered ring which is optionally further substituted; ring B is an optionally substituted 5- to 7-membered non-aromatic nitrogen-containing heterocycle; W 1 is O, S, SO, SO 2 , an optionally substituted C 1-6 alkylene group or NR 4 wherein R 4 is a hydrogen atom or a C 1-6 alkyl group; R 1 is an optionally substituted C 6-14 aryl group or an optionally substituted heterocyclic group; R 3 is a hydrogen atom or a halogen atom; (1) when W 2 is O, S, SO or SO 2 , R 2 is an optionally substituted heterocyclic group; and (2) when W 2 is a bond, R 2 is a hydrogen atom, a halogen atom, an optionally substituted C 1-6 alkyl group, an optionally substituted C 3-10 cycloalkyl group or an optionally substituted heterocyclic group, or a salt thereof.