Patent ID: 8501733

Claim:
A compound represented by the formula (I): or a pharmaceutically acceptable salt thereof, wherein Ring A is a C6-10 aryl group or a 5- to 10-membered heterocyclic group, L is a single bond, an oxygen atom or a group represented by the formula —C(═O)NR L — (wherein R L is a hydrogen atom or a C1-6 alkyl group which may have 1 to 3 substituents selected from Substituent Group a) or a C1-6 alkylene group, a C2-6 alkenylene group or a C2-6 alkynylene group which may have 1 to 3 substituents selected from Substituent Group α, respectively, Ring B is a C3-8 cycloalkyl group, a C6-10 aryl group or a 5- to 10-membered heterocyclic group, X is a C1-3 alkylene group or a C2-3 alkenylene group which may have 1 to 3 substituents selected from Substituent Group α, respectively, Y is an oxygen atom, a sulfur atom, a sulfoxide group, a sulfone group or a group represented by the formula —NR Y — (wherein R Y is a hydrogen atom or a C1-6 alkyl group, a C1-6 alkylcarbonyl group, a C3-8 cycloalkylcarbonyl group, a C6-10 arylcarbonyl group, a C1-6 alkylsulfonyl group, a C6-10 arylsulfonyl group, a C6-10 aryl group or a 5- to 6-membered heteroaryl group which may have 1 to 3 substituents selected from Substituent Group α, respectively), Z is a single bond or a C1-3 alkylene group, R 1 and R 2 are each independently a hydrogen atom, a halogen atom, a hydroxy group or a cyano group, or a C1-6 alkyl group or a C1-6 alkoxy group which may have 1 to 3 substituents selected from Substituent Group α, respectively, R 3 is a hydrogen atom or a C1-6 alkyl group, a C1-6 alkylcarbonyl group, a C6-10 arylcarbonyl group, a C1-6 alkylsulfonyl group, a C6-10 arylsulfonyl group, a C3-8 cycloalkyl group, a C6-10 aryl group or a 5- to 10-membered heterocyclic group which may have 1 to 3 substituents selected from Substituent Group α, respectively, R 4 and R 5 are each independently a hydrogen atom, a halogen atom or a hydroxy group, or a C1-6 alkyl group, a C1-6 alkoxy group, a C3-8 cycloalkyl group, a C3-8 cycloalkyloxy group, a C6-10 aryl group or a 5- to 10-membered heterocyclic group which may have 1 to 3 substituents selected from Substituent Group α, respectively, R 6 , R 7 and R 8 are each independently a hydrogen atom, a halogen atom, a hydroxy group or a cyano group, or a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, a C1-6 alkoxy group, a C3-8 cycloalkyl group, a C3-8 cycloalkyloxy group, a C6-10 aryl group or a 5- to 10-membered heterocyclic group which may have 1 to 3 substituents selected from Substituent Group α, respectively, and n is an integer of 1 to 3 [Substituent Group α: a hydrogen atom, a halogen atom, a hydroxy group, an oxo group, a cyano group, a C1-6 alkyl group, a trifluoromethyl group, a trifluoromethoxy group, a C1-6 alkoxy group, a C3-8 cycloalkyl group, a C3-8 cycloalkyloxy group, a C6-10 aryl group and a 5- to 10-membered heterocyclic group].