Patent ID: 8829035

Claim:
A compound depicted by formula (I), or a pharmaceutically acceptable salt or solvate thereof: wherein R 1 represents: (1) a C 3-6 alkyl group; (2) a C 1-6 alkyl group substituted with one or more substituent groups selected from the group consisting of: (a) a halogen atom, (b) a R a —O—, (c) a R a —O—CO—, (d) a R a —O—CO—NR a —, (e) a R a —O—CO—C 2 H 4 —CO—NH— (f) a R a —S—, (g) a R a —SO 2 , (h) a R a —CO—O—, (i) a R a —CO—NR a —, (j) a R a —NR a —, (k) a R a —NR a —CS—NR a —, (l) a 5- to 6-membered ring group, (m) a carboxy group, (n) a hydroxy group, (o) an amino group, (p) a heterocyclic-carbonyl group, or (q) a HO—CO—C 2 H 4 —CO—NH— wherein each R a is the same or different, and represents an optionally halogen-substituted C 1-6 alkyl group; (3) an optionally substituted C 2-6 alkenyl group, (4) an optionally substituted C 2-6 alkynyl group, (5) a C 6-14 aryl group substituted with one or more substituents selected from the group consisting of a halogen atom and C 1-4 alkoxy group; (6) an optionally substituted 5- to 6-membered aromatic heterocyclic group, (7) an optionally substituted C 3-10 non-aromatic cyclic hydrocarbon group, or (8) an optionally substituted a 5- to 6-membered non-aromatic heterocyclic group; X represents O, S or N—R 3 , wherein R 3 represents hydrogen atom or R a —O—CO—, wherein R a is a C1-6 alkyl group; Y represents CH or N; Z represents N or a C—R 2 , wherein R 2 represents: (1) an optionally substituted C 1-6 alkyl group, (2) an optionally substituted C 2-6 alkenyl group, (3) an optionally substituted C 2-6 alkynyl group, (4) an optionally substituted C 6-14 aryl group, (5) an optionally substituted 5- to 6-membered aromatic heterocyclic group, (6) an optionally substituted C 3-10 non-aromatic cyclic hydrocarbon group, or (7) an optionally substituted a 5- to 6-membered non-aromatic heterocyclic group; ring A represents an optionally substituted benzene ring; and ring B represents an optionally substituted benzene ring.