| abstract |
The present invention provides a novel compound having PDE10 inhibitory activity or a pharmacologically acceptable salt thereof. SOLUTION: Formula [I]: [Wherein, ring A is nitrogen-containing heteroaryl and the like; ring B is an aliphatic monocyclic group and the like; X 1 to X 5 are (1) X 1 and X 3 are N, and X 2 is C—R 1 , X 4 is C, X 5 is CH, (2) X 1 is C, X 2 , X 3 and X 4 are N, X 5 is CH, (3) X 1 is C, X 2 and X 4 are N, X 3 and X 5 are CH, or (4) X 1 is C, X 2 is C—R 1 , X 3 , X 4 and X 5 are N; R 1 is a hydrogen atom, etc .; Y is amino Each group is shown. Or a pharmaceutically acceptable salt thereof. [Selection figure] None |