| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide compounds to be used for treatment or prevention of psychosis, schizophrenia, Alzheimer's disease, cognitive disorders, memory deficits, colon cancer, sleep disturbance, circadian rhythm disorders, and glial tumors. <P>SOLUTION: The compounds are represented by formula (I). In the formula: one of X and Y is N while the other is CH, or both X and Y are N; A is aryl or 5 or 6 membered heteroaryl each of which is optionally substituted by 1C-6C alkyl; B is H, cyano or, is optionally substituted aryl or optionally substituted 5 or 6 membered heteroaryl. <P>COPYRIGHT: (C)2013,JPO&INPIT |
