(EN) Anxiolytic agents which are racemic or optically active pyrido[1,2-a]pyrazine derivatives of formula (I), wherein X is N or CH and Y represents one of certain pyrazolo, triazolo, tetrazolo or cyclic imido radicals; and intermediates therefor.(FR) On décrit des agents anxiolytiques qui sont racémiques ou des dérivés optiquement actifs de pyrido(1,2-a)pyrazine ayant la formule (I) selon laquelle X constitue N ou CH et Y représente un radical parmi certains radicaux de pyrazole, de triazole, de tétrazole ou d'imide cyclique; et des intermédiaires de ceux-ci.
2,7-Substituted octahydro-1H-pyrido[1,2-a]pyrazine derivatives as ligands for serotonin receptors
申请人:——
公开号:US20040214830A1
公开(公告)日:2004-10-28
Substituted pyrido[1,2-a]pyrazines of general formula I; wherein Ar and Ar
1
represent various carbocyclic and heterocyclic aromatic rings; A represents O, S, SO, SO
2
, CHOH, C═O, or —(CR
3
R
4
); and n is 0-2, as well as precursors thereto, are ligands for dopamine receptor subtypes and serotonin (5HT) within the body and are therefore useful in the treatment of disorders of the dopamine and serotonin systems:
1
2,7-substituted octahydro-1H-pyrido[1,2-A]pyrazine derivatives as ligands for serotonin receptors
申请人:Pfizer Inc.
公开号:US20030055061A1
公开(公告)日:2003-03-20
Substituted pyrido[1,2-a]pyrazines of general formula I; wherein Ar and Ar
1
represent various carbocyclic and heterocyclic aromatic rings; A represents O, S, SO, SO
2
, CHOH, C═O, or —(CR
3
R
4
); and n is 0-2, as well as precursors thereto, are ligands for dopamine receptor subtypes and serotonin (5HT) within the body and are therefore useful in the treatment of disorders of the dopamine and serotonin systems:
1
2,7-substituted octahydro-1H-pyrido[1,2-A]pyrazine derivatives as ligands for serotonin receptors
申请人:Pfizer Inc
公开号:US06231833B1
公开(公告)日:2001-05-15
Substituted pyrido[1,2-a]pyrazines of general formula I; wherein Ar and Ar1 represent various carbocyclic and heterocyclic aromatic rings; A represents O, S, SO, SO2, CHOH, C═O, or —(CR3R4); and n is 0-2, as well as precursors thereto, are ligands for dopamine receptor subtypes and serotonin (5HT) within the body and are therefore useful in the treatment of disorders of the dopamine and serotonin systems:
The invention is based on the discovery that compounds of formula (I) possess unexpectedly high affinity for the A
2a
adenosine receptor, and can be useful as antagonists thereof for preventing and/or treating numerous diseases, including Parkinson's disease. In one embodiment, the invention features a compound of formula (I).