Targeting Dopamine D3 and Serotonin 5-HT1A and 5-HT2A Receptors for Developing Effective Antipsychotics: Synthesis, Biological Characterization, and Behavioral Studies
摘要:
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.
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.
ARYL PIPERAZINE DERIVATIVES FOR THE TREATMENT OF NEUROPSYCHIATRIC DISORDERS
申请人:Universita' Degli Studi di Siena
公开号:EP1836192A2
公开(公告)日:2007-09-26
[EN] NOVEL ARYL PIPERAZINE DERIVATIVES WITH MEDICAL UTILITY<br/>[FR] NOUVEAUX DERIVES D'ARYLE PIPERAZINE PRESENTANT UNE UTILITE MEDICALE
申请人:UNIV SIENA
公开号:WO2006072608A2
公开(公告)日:2006-07-13
[EN] This invention provides novel aryl piperazine derivatives having medical utility, in particular as modulators of dopamine and serotonin receptors, preferably the D3, D2-like and 5-HT2 receptor subtypes, and in particular useful for the treatment of neuropsychiatric disorders incl. schizophrenia. [FR] L'invention concerne de nouveaux dérivés d'aryle pipérazine possédant une utilité médicale, en particulier, en tant que modulateurs des récepteurs de dopamine et de sérotonine, de préférence, les sous-types des récepteurs D3, analogue à D2 et 5-HT2, ces dérivés étant, en particulier utiles, pour traiter des troubles neuropsychiatriques, y compris la schizophrénie.
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.