Behavioral Approach to Nondyskinetic Dopamine Antagonists: Identification of Seroquel
摘要:
A great need exists for antipsychotic drugs which will not induce extrapyramidal symptoms (EPS) and tardive dyskinesias (TDs). These side effects are deemed to be a consequence of nonselective blockade of nigrostriatal and mesolimbic dopamine D2 receptors. Nondyskinetic clozapine (1) is a low-potency D2 dopamine receptor antagonist which appears to act selectively in the mesolimbic area. In this work dopamine antagonism was assessed in two mouse behavioral assays: antagonism of apomorphine-induced climbing and antagonism of apomorphine-induced disruption of swimming. The potential for the liability of dyskinesias was determined in haloperidol-sensitized Cebus monkeys. Initial examination of a few close cogeners of 1 enhanced confidence in the Cebus model as a predictor of dyskinetic potential. Considering dibenzazepines, 2 was not dyskinetic whereas 2a was dyskinetic. Among dibenzodiazepines, 1 did not induce dyskinesias where as its N-2-(2-hydroxyethoxy)ethyl analogue 3 was dyskinetic. The emergence of such distinctions presented an opportunity. Thus, aromatic and N-substituted analogues of 6-(piperazin-1-yl)-11H-dibenz[b,e]azepines and 11-(piperazin-1-yl)dibenzo[b,f][1,4]thiazepines and -oxazepines were prepared and evaluated. 11-(4-[2-(2-Hydroxyethoxy)ethyl]piperazin-1-yl)dibenzo[b,f][1,4]thiazepine (23) was found to be an apomorphine antagonist comparable to clozapine. It was essentially nondyskinetic in the Cebus model. With 23 as a platform, a number of N-substituted analogues were found to be good apomorphine antagonists but all were dyskinetic.
Amino substituted diaryl[a,d]cycloheptene analogs as muscarinic agonists and methods of treatment of neuropsychiatric disorders
申请人:Ek Fredrik
公开号:US20050192268A1
公开(公告)日:2005-09-01
Disclosed herein are analogs of clozapine and pharmaceutically acceptable salts, esters, amides, or prodrugs thereof; methods of synthesizing the analogs; and methods of using the analogs for treating neuorpsychiatric disorders. In some embodiments, the analogs are amino substituted diaryl[a,d]cycloheptenes.
Amino bustituted diaryl[a,d]cycloheptene analogs as muscarinic agonists and methods of treatment of neuropsychiatric disorders
申请人:Ek Fredrik
公开号:US20060199798A1
公开(公告)日:2006-09-07
Disclosed herein are analogs of clozapine and pharmaceutically acceptable salts, esters, amides, or prodrugs thereof; methods of synthesizing the analogs; and methods of using the analogs for treating neuorpsychiatric disorders. In some embodiments, the analogs are amino substituted diaryl[a,d]cycloheptenes.
AMINO SUBSTITUTED DIARYL[a,d]CYCLOHEPTENE ANALOGS AS MUSCARINIC AGONISTS AND METHODS OF TREATMENT OF NEUROPSYCHIATRIC DISORDERS
申请人:Ek Fredrik
公开号:US20090239840A1
公开(公告)日:2009-09-24
Disclosed herein are analogs of clozapine and pharmaceutically acceptable salts, esters, amides, or prodrugs thereof; methods of synthesizing the analogs; and methods of using the analogs for treating neuorpsychiatric disorders. In some embodiments, the analogs are amino substituted diaryl[a,d]cycloheptenes.
Use of N-desmethylclozapine and related compounds as dopamine stabilizing agents
申请人:Burstein S. Ethan
公开号:US20060252744A1
公开(公告)日:2006-11-09
Disclosed herein is the use of N-desmethylclozapine (NDMC) and related compounds to treat a variety of neuropsychiatric diseases including psychosis. It is shown that NDMC and related compounds are agonists or partial agonists at D2 and D3 dopamine receptors and thus may be effective as a dopamine stabilizing agent, allowing it to be used to treat or provide reduced incidence of Extrapyramidal symptoms (EPS) and/or tardive dyskinesias (TD). Also disclosed is administering NDMC and related compounds in combination with other anti-psychotic agents.
Dibenzo-condensed azepine, diazepine, oxazepine and thiazepine derivatives as muscarinic agonists and methods of treatment of neuropsychiatric disorders
申请人:Acadia Pharmaceuticals Inc.
公开号:EP2088147A1
公开(公告)日:2009-08-12
Disclosed herein are analogs of clozapine and pharmaceutically acceptable salts, esters, amides, or prodrugs thereof; methods of synthesizing the analogs; and methods of using the analogs for treating neuorpsychiatric disorders. In some embodiments, the analogs are amino substituted diaryl[a,d]cycloheptenes.