Patent ID: 8362236

Claim:
A compound represented by formula (1) or a pharmaceutically acceptable salt thereof: wherein X represents CH or N; R 1 represents a hydrogen atom, a halogen atom, a cyano group, a C 1-6 alkyl group, a C 1-4 haloalkyl group, a C 2-6 alkenyl group, a C 2-6 alkynyl group, a C 1-6 alkoxy group, or a C 1-6 alkylthio group; R 2 represents a hydrogen atom, a halogen atom, a C 1-6 alkyl group, a C 2-6 alkenyl group, or a C 2-6 alkynyl group, or R 2 and R 3 together form a ring; R 3 represents a hydrogen atom, a halogen atom, a cyano group, a C 1-6 alkyl group, a C 2-6 alkenyl group, a C 2-6 alkynyl group, or a C 1-6 alkoxy group, or R 2 and R 3 together form a ring; R 4 represents a hydrogen atom, a halogen atom, a C 1-6 alkyl group, a C 2-6 alkenyl group, or a C 2-6 alkynyl group; R 5 , R 6 , and R 7 each independently represent a C 1-6 alkylene group, a C 2-6 alkenylene group, a C 2-6 alkynylene group, a C 3-10 cycloalkylene group, a C 3-10 cycloalkenylene group, a C 6-12 arylene group, or -3 to 12-membered monocyclic heterocyclic ring-, each of which may have a substituent; L 1 , L 2 , and L 3 each independently represent a single bond, —CONR 8 —, —NR 8 CO—, —NR 8 —, —O—, —SO 2 NR 8 —, —NR 8 SO 2 —, —COO—, —NR 8 CONR 8′ —, —NR 8 COO—, or —OCONR 8 —; R 8 and R 8′ each independently represent a hydrogen atom or a C 1-6 alkyl group which may have a substituent.