3-Aminopyridazine derivatives with atypical antidepressant, serotonergic and dopaminergic activities
摘要:
Minaprine [3-[(beta-morpholinoethyl)amino]-4-methyl-6-phenylpyridazine dihydrochloride] is active in most animal models of depression and exhibits in vivo a dual dopaminomimetic and serotoninomimetic activity profile. In an attempt to dissociate these two effects and to characterize the responsible structural requirements, a series of 47 diversely substituted analogues of minaprine were synthesized and tested for their potential antidepressant, serotonergic, and dopaminergic activities. The structure-activity relationships show that dopaminergic and serotonergic activities can be dissociated. Serotonergic activity appears to be correlated mainly with the substituent in the 4-position of the pyridazine ring whereas the dopaminergic activity appears to be dependent on the presence, or in the formation, of a para-hydroxylated aryl ring in the 6-position of the pyridazine ring.
[DE] PYRIDAZINONE ALS ENDOTHELIN-REZEPTOR-ANTAGONISTEN<br/>[EN] PYRIDAZINONES AS ENDOTHELIN-RECEPTOR ANTAGONISTS<br/>[FR] PYRIDAZINONES UTILES COMME ANTAGONISTES DU RECEPTEUR DE L'ENDOTHELINE
申请人:MERCK PATENT GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNG
公开号:WO1997013758A1
公开(公告)日:1997-04-17
(DE) Neue Verbindungen der Formel (I), worin R1, R2, R3 und Y die in Patentanspruch 1 angegebene Bedeutung haben, sowie deren Salze zeigen Endothelinrezeptor-antagonistische Eigenschaften.(EN) Novel compounds of formula (I), wherein R1, R2, R3 and Y have the meanings indicated in claim 1, and their salts, have endothelin-receptor antagonistic properties.(FR) L'invention concerne de nouveaux composés de la formule (I) où R1, R2, R3 et Y ont la signification donnée dans la revendication 1. L'invention concerne également leurs sels. Lesdits nouveaux composés ont des propriétés antagonistes du récepteur de l'endothéline.