[EN] CARDIOTONIC COMPOUNDS WITH INHIBITORY ACTIVITY AGAINST BETA-ADRENERGIC RECEPTORS AND PHOSPHODIESTERASE [FR] COMPOSES CARDIOTONIQUES DOTES D'UNE ACTIVITE INHIBITRICE DIRIGEE CONTRE LES RECEPTEURS BETA-ADRENERGIQUES ET LA PHOSPHODIESTERASE
Substituted methoxyphenyl-4,5 dihydro-3(2H)-pridazinones having
申请人:Glaxo Inc.
公开号:US05204463A1
公开(公告)日:1993-04-20
Pyridazinones of the following formula (I): ##STR1## where R.sup.1 -R.sup.4 are a variety of substituents and L is a linking group, a pharmaceutical composition for treating congestive heart failure, novel intermediates, methods for such treatment and processes for preparing compounds of formula (I).
A kinetic resolution of pyridazinones of the following formula (A): ##STR1## where R.sup.1 is alkyl by enzymatic hydrolysis results in good optical purity of the phenolic product. This is significant considering the distance in the molecule (A) from the C-5 chiral center to the site of hydrolysis.
Pyridazinones having cardiotonic and beta blocking activities
申请人:Glaxo Inc.
公开号:US05096904A1
公开(公告)日:1992-03-17
Pyridazinones of the following formula (I): ##STR1## where R.sup.1 -R.sup.4 are a variety of substituents and L is a linking group, a pharmaceutical composition for treating congestive heart failure, novel intermediates, methods for such treatment and processes for preparing compounds of formula (I).
Pyridazinones having cardiotonic and beta blocking activity
申请人:GLAXO WELLCOME INC.
公开号:EP0412814A2
公开(公告)日:1991-02-13
Pyridazinones of the following formula (I):
where R¹-R⁴ are a variety of substituents and L is a linking group, a pharmaceutical composition for treating congestive heart failure, novel intermediates, methods for such treatment and processes for preparing compounds of formula (I).