Structure-activity relationships for prazosin and WB 4101 analogs as .alpha.1-adrenoreceptor antagonists
摘要:
Several alpha-adrenoreceptor antagonists were prepared by coupling one of the two moieties of WB 4101 (1) with one of the two moieties of prazosin (2). Their blocking activity and relative selectivity on alpha 1- and alpha 2-adrenoreceptors were evaluated in the isolated rat vas deferens. Although retaining a significant selectivity toward alpha 1-adrenoreceptors, all the drugs were weaker antagonists than the parent compounds 1 and 2. Opening the piperazine ring of 2 gave 3, which displayed a very high activity and selectivity toward alpha 1-adrenoreceptors (alpha 1/alpha 2 = 3890). This may have relevance in understanding the mode of action of prazosin. In addition, 3 may represent a valuable tool in the characterization of alpha-adrenoreceptor subtypes.
GIARDINA, D.;BERTINI, R.;BRANCIA, E.;BRASILI, L.;MELCHIORRE, C., J. MED. CHEM., 1985, 28, N 9, 1354-1357
作者:GIARDINA, D.、BERTINI, R.、BRANCIA, E.、BRASILI, L.、MELCHIORRE, C.
DOI:——
日期:——
MANOURY, PH. M.;BINET, J. L.;DUMAS, A. P.;LEFEVRE-BORG, F.;CAVERO, I., J. MED. CHEM., 1986, 29, N 1, 19-25
作者:MANOURY, PH. M.、BINET, J. L.、DUMAS, A. P.、LEFEVRE-BORG, F.、CAVERO, I.
DOI:——
日期:——
US6355641B1
申请人:——
公开号:US6355641B1
公开(公告)日:2002-03-12
[EN] OXAZOLONE DERIVATIVES AND THEIR USE AS ALPHA-1 ADRENORECEPTOR MODULATORS<br/>[FR] DERIVES D'OXAZOLONE ET UTILISATIONS DE CES DERNIERS EN TANT QUE MODULATEURS DU RECEPTEUR ADRENERGIQUE ALPHA-1
申请人:HOFFMANN LA ROCHE
公开号:WO2000055143A1
公开(公告)日:2000-09-21
Compounds of Formula (I) wherein X is Formula (A), (B) or (C): Z is CH or N; R1 is cycloalkyl, cycloalkenyl, heterocyclic, aryl or heteroaryl; are useful as alpha1- adrenoreceptor modulators, particularly antagonists.