| abstract |
(57) [Summary] Formula (I) (In the formula, one of X and Y represents nitrogen, the other of X and Y represents oxygen, sulfur, or NR 2 ; Q contains one nitrogen atom as a sole hetero atom, and A compound represented by a substituted monocyclic heteroaliphatic five-membered or six-membered ring bonded to a heteroatom five-membered ring containing X and Y moieties), and a substituted 1,3-dioxopropane precursor thereof Is a ligand for dopamine receptor subtypes in the body and is therefore useful in the treatment of dopamine disorders, especially schizophrenia. |