Dihydropyridazinone derivatives, a process for their preparation and
申请人:Heumann Pharma GmbH & Company
公开号:US04921856A1
公开(公告)日:1990-05-01
New dihydropryidazinone derivatives corresponding to the following formula ##STR1## and a process for their preparation and pharmaceutical preparations containing these compounds are described. These compounds are effective positively inotropic substances with an improved therapeutic profile.