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    • 55. 发明授权
    • Substituted 4,5-dihydro-6-(substituted)-phenyl-3(2H)-pyridazinones and
6-(substituted) phenyl-3(2H)-pyridazinones
    • 取代的4,5-二氢-6-(取代的) - 苯基-3(2H) - 哒嗪酮和6-(取代的)苯基-3(2H) - 哒嗪酮
    • US4734415A
    • 1988-03-29
    • US477695
    • 1983-03-22
    • Ila SircarJames A. Bristol
    • Ila SircarJames A. Bristol
    • C07D403/10C07D521/00C07D237/04A61K31/50
    • C07D231/12C07D233/56C07D249/08C07D403/10
    • Substituted 4,5-dihydro-6-(substituted)phenyl-3(2H)-pyridazinone compounds and 6-(substituted)phenyl-3(2H)-pyridazinone compounds and pharmaceutically acceptable salts thereof are useful as cardiotonic and antihypertensive agents.Said compounds cause a significant increase in myocardial contractility in the dog. Said compounds also cause a decrease in blood pressure in the spontaneously hypertensive rat. Said compounds are produced by reacting substituted .gamma.-oxobenzenebutanoic acids with suitably substituted hydrazines to provide 4,5-dihydro-6-(substituted)phenyl-3(2H)-pyridazinones which are dehydrogenated to 6-(substituted)phenyl-3(2H)-pyridazinones.Both the intermediate 4,5-dihydro-6-(substituted)phenyl-3(2H)-pyridazinones and the 6-(substituted)phenyl-3(2H)-pyridazinones are useful as cardiotonic and antihypertensive agents.
    • 取代的4,5-二氢-6-(取代的)苯基-3(2H) - 哒嗪酮化合物和6-(取代的)苯基-3(2H) - 哒嗪酮化合物及其药学上可接受的盐可用作强心剂和抗高血压剂。 所述化合物引起狗中心肌收缩力的显着增加。 所述化合物还引起自发性高血压大鼠血压降低。 所述化合物通过使取代的γ-氧代苯丁酸与适当取代的肼反应制得,得到4,5-二氢-6-(取代的)苯基-3(2H) - 哒嗪酮,将其脱氢为6-(取代的)苯基-3(2H ) - 哒嗪酮。 中间体4,5-二氢-6-(取代的)苯基-3(2H) - 哒嗪酮和6-(取代的)苯基-3(2H) - 哒嗪酮均可用作强心剂和抗高血压剂。
    • 57. 发明授权
    • 4,5-dihydro-6-[2-[4-(1H-imidazol-1-yl)phenyl]-ethenyl]-3(2H)-
pyridazinones and related compounds
    • -4,5-二氢-6- [2- [4-(1H-咪唑-1-基)苯基] - 乙烯基] -3(2H) - 哒嗪酮和相关化合物
    • US4599332A
    • 1986-07-08
    • US669323
    • 1984-11-09
    • Ila Sircar
    • Ila Sircar
    • C07D403/10C07D521/00A61K31/50
    • C07D231/12C07D233/56C07D249/08C07D403/10
    • 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.
    • 4,5-二氢-6- [2- [4-(1H-咪唑-1-基)苯基]亚烷基或亚烷基-3(2H) - 哒嗪酮及其相关化合物及其药学上可接受的酸加成盐可用作强心剂和 抗高血压药。 上述化合物引起狗中心肌收缩力的显着增加,并引起自发性高血压大鼠血压降低。 通过使合适的γ-氧代丁酸与适当取代的肼反应制得化合物,得到4,5-二氢-6- [4- [咪唑基苯基] - 亚烯基或亚烷基-3(2H) - 哒嗪酮,其可被氧化成6 - [4- [咪唑基苯基]亚烯基或亚烷基-3(2H) - 哒嗪酮。