Novel Aryl Piperazine Derivatives With Medical Utility
申请人:Campiani Giuseppe
公开号:US20090238761A1
公开(公告)日:2009-09-24
This invention provides novel aryl piperazine derivatives having medical utility, in particular as modulators of dopamine and serotonin receptors, preferably the D
3
, D
2
-like and 5-HT
2
receptor subtypes, and in particular useful for the treatment of neuropsychiatric disorders incl. schizophrenia.
Design, synthesis, and binding affinities of potential positron emission tomography (PET) ligands with optimal lipophilicity for brain imaging of the dopamine D3 receptor. Part II
作者:Marcello Leopoldo、Enza Lacivita、Paola De Giorgio、Marialessandra Contino、Francesco Berardi、Roberto Perrone
DOI:10.1016/j.bmc.2008.11.044
日期:2009.1
In the search for compounds with potential for development as positronemissiontomography radioligands for brain D3 receptor imaging, a series of N-[4-(4-arylpiperazin-1-yl)butyl]arylcarboxamides with appropriate lipophilicity (2 < log P < 3.5) were synthesized and tested in vitro. Some of the final compounds showed moderate-to-high dopamine D3 receptor affinities but lacked selectivity over D2 receptors
NOVEL CHROMENE AND THIOCHROMENE CARBOXAMIDE DERIVATIVES, METHODS FOR PREPARING SAME AND THERAPEUTIC APPLICATIONS OF SAME
申请人:Sokoloff Pierre
公开号:US20100029682A1
公开(公告)日:2010-02-04
The present invention relates to novel chromene or thiochromene carboxamide derivatives, the preparation of same, pharmaceutical compositions of same and the use of same as dopamine D3 ligands as a medicament for central nervous system disorders.
Targeting Dopamine D<sub>3</sub> and Serotonin 5-HT<sub>1A</sub> and 5-HT<sub>2A</sub> Receptors for Developing Effective Antipsychotics: Synthesis, Biological Characterization, and Behavioral Studies
Combination of dopamine D-3 antagonism, serotonin 5-HT1A partial agonism, and antagonism at 5-HT2A leads to a novel approach to potent atypical antipsychotics. Exploitation of the original structureactivity relationships resulted in the identification of safe and effective antipsychotics devoid of extrapyramidal symptoms liability, sedation, and catalepsy. The potential atypical antipsychotic 5bb was selected for further pharmacological investigation. The distribution of c-fos positive cells in the ventral striatum confirmed the atypical antipsychotic profile of 5bb in agreement with behavioral rodent studies. 5bb administered orally demonstrated a biphasic effect on the MK801-induced hyperactivity at dose levels not able to induce sedation, catalepsy, or learning impairment in passive avoidance. In microdialysis studies, 5bb increased the dopamine efflux in the medial prefrontal cortex. Thus, 5bb represents a valuable lead for the development of atypical antipsychotics endowed with a unique pharmacological profile for addressing negative symptoms and cognitive deficits in schizophrenia.
ARYL PIPERAZINE DERIVATIVES FOR THE TREATMENT OF NEUROPSYCHIATRIC DISORDERS