摘要 |
<p>Disclosed are compounds of formula (I) or the pharmaceutically acceptable acid addition salts thereof wherein: R1-R4 represent organic or inorganic groups; A represents an alkylene group of 2 to 6 carbon atoms optionally substituted with one or more alkyl groups having from 1 to 4 carbon atoms; Y represents methylene, oxygene, sulfur, or NH; and X is either N, C or CH, which compounds are useful in the treatment of affective disorders such as schizophrenia, depression, Alzheimer's disease, movement disorders such as Parkinsonism and dystonia, and other disorders which respond to dopaminergic blockade such as substance abuse and obsessive compulsive disorders. Further, compounds of this invention may be useful in treating the extrapyramidal side effects associated with the use of conventional neuroleptic agents.</p> |