| 摘要 |
PCT No. PCT/GB93/02189 Sec. 371 Date Apr. 20, 1995 Sec. 102(e) Date Apr. 20, 1995 PCT Filed Oct. 22, 1993 PCT Pub. No. WO94/10162 PCT Pub. Date May 11, 1994Fused tricyclic heteroaromatic compounds of formula <IMAGE> wherein one of X and Y represents nitrogen, and the other of X and Y represents oxygen, sulphur or N-R2; Q represents a substituted five- or six-membered monocyclic heteroaliphatic ring which contains one nitrogen atom as the sole heteroatom and is linked to the five-membered heteroatomic ring containing the moieties X and Y via a carbon atom: as well as substituted 3,4-dihydro-1-hydroxy-2-oxomethyl-naphthalene precursors thereto, are ligands for dopamine receptor subtypes within the body and are therefore useful in the treatment of disorders of the dopamine system, in particular schizophrenia.
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