4,5-Dihydro-6-[2-[4-(1H -imidazol-1-yl)phenyl]alkylenyl or alkylene-3(2H)-pyridazinones and related compounds and pharmaceutically acceptable acid addition salts thereof are useful as cardiotonic and antihypertensive agents. The above compounds cause a significant increase in myocardial contractility in the dog and also cause a decrease in blood pressure in the spontaneously hypertensive rat. The compounds are produced by reacting the appropriate .gamma.-oxobutanoic acid with a suitably substituted hydrazine to provide 4,5-dihydro-6-[4-[imidazolylphenyl]-alkenylene or alkylene-3(2H)-pyridazinones which may be oxidized to 6-[4-[imidazolylphenyl]alkenylene or alkylene-3(2H)-pyridazinones.
6- [2-[4-(1H-imidazol-1-yl)phenyl]-alkylene and alkylenyl]-3(2H)-pyridazinones, the 4,5-dihydro- pyridazinone derivatives thereof, and a process for the preparation thereof
申请人:WARNER-LAMBERT COMPANY
公开号:EP0145450A2
公开(公告)日:1985-06-19
6-[2-[4-[1H-imidazol-1-yl)phenyl]alkylenyl or alkylene-3(2H)-pyridazinones of the following formula I
and pharmaceutically acceptable acid addition salts are useful as cardiotonic and antihypertensive agents. The pyridazinone radical may be 4,5-dihydro substituted.
Pharmaceutical compositions comprising the compounds, and a process for the preparation of the compounds are also disclosed.
下式 I 的 6-[2-[4-[1H-咪唑-1-基]苯基]亚烷基或亚烷基-3(2H)-哒嗪酮类化合物
和药学上可接受的酸加成盐可用作强心剂和降压药。哒嗪酮基可以是 4,5-二氢取代的。
此外,还公开了包含这些化合物的药物组合物以及制备这些化合物的工艺。
Substituted 4.5-dihydro-6-vinyl-3(2H)-pyridazinones and 6-vinyl-3(2H)-pyridazinones and process for producing the same
申请人:A. Nattermann & Cie. GmbH
公开号:EP0150463A1
公开(公告)日:1985-08-07
The invention is related to new substituted 4.5-dihydro-6-vinyl-3(2H)-pyridazinones and 6-vinyl-3(2H)-pyridazinones of the formula I
as well as to processes for producing the same.
本发明涉及新的取代的 4.5-二氢-6-乙烯基-3(2H)-哒嗪酮和式 I 的 6-乙烯基-3(2H)-哒嗪酮,以及生产它们的工艺。
及其生产工艺。