Dopamine autoreceptor agonists as potential antipsychotics. 2. (Aminoalkoxy)-4H-1-benzopyran-4-ones
摘要:
The synthesis and pharmacological properties of a novel type of [(arylpiperazinyl)alkoxy]-4H-1-benzopyran-4-ones with dopaminergic activity are described. The nature of the arylpiperazine (AP) moiety determines the dopamine (DA) agonist/antagonist character of this series of compounds; when the aryl portion of the AP is unsubstituted the compounds appear to be DNA autoreceptor agonists while substituted aryl groups seem to impart DA antagonist activity. A heterocyclic piperazine, 7-[3-[4-(2-pyridinyl)-1-piperazinyl]propoxy]-4H-1-benzopyran-4-one (31, PD 119819) has been identified as an extremely selective DA autoreceptor agonist in tests that include [H-3]haloperiodol binding, inhibition of spontaneous locomotor activity, inhibition of brain DA synthesis, inhibition of brain DA neuronal firing, stereotypy assessment, and reversal of 6-hydroxydopamine (6-OHDA) induced akinesia in rats. In addition, 31 possesses good oral activity in the Sidman avoidance test in squirrel monkeys, a predictor of clinical antipsychotic efficacy. In another primate model, 31 has been found to lack the liability for extrapyramidal side effects observed with currently available antipsychotic drugs.
4H-1-benzopyran-4-ones and their sulfur containing analogs
申请人:Warner-Lambert Company
公开号:US04678787A1
公开(公告)日:1987-07-07
Novel 4H-1-benzopyran-4-ones and their sulfur containing analogs are disclosed which are efficacious for the treatment of psychosis including schizophrenia.
Novel 4H-1-benzopyran-4-ones and their sulphur containing analogs
申请人:WARNER-LAMBERT COMPANY
公开号:EP0190015A1
公开(公告)日:1986-08-06
There are disclosed novel 4H -1-benzopyran-4-ones and their sulphur containing analogs which are effecacious for the treatment of psychosis including schizophrenia The compounds have the formula (I)
wherein X is oxygen or sulfur, n is 2, 3, 4 or 5 and R is
or
in which Ar is an aryl.