Substituted phenylvinyl cyclopropyl ketones
    2.
    发明授权
    Substituted phenylvinyl cyclopropyl ketones 失效
    取代的苯基乙烯基环丙基酮

    公开(公告)号:US4227015A

    公开(公告)日:1980-10-07

    申请号:US12202

    申请日:1979-02-14

    申请人: Joseph C. Collins

    发明人: Joseph C. Collins

    CPC分类号: C07C45/74 C07C37/055

    摘要: Aryl substituted diketones and keto-esters, useful as antiviral agents and insecticides, are prepared by reacting an arylalkyl or arylalkenyl iodide with a metal salt of the appropriate diketone or keto-ester. The intermediate iodides are prepared by condensing a methyl cyclopropyl ketone with an aromatic aldehyde to give an arylvinyl cyclopropyl ketone, reducing the latter to an arylethyl cyclopropyl carbinol or arylvinyl cyclopropyl carbinol, treating the carbinol with phosphorus tribromide and then with zinc bromide to give an arylalkyl or arylalkenyl bromide, and then replacing the bromine atom by iodine.

    摘要翻译: 通过使芳基烷基或芳基烯基碘与适当的二酮或酮酯的金属盐反应来制备用作抗病毒剂和杀虫剂的芳基取代的二酮和酮酯。 中间体碘化物通过将甲基环丙基酮与芳族醛缩合得到芳基乙烯基环丙基酮,将其还原成环丙基甲醇或芳基乙烯基环丙基甲醇的芳基乙基酯,然后用溴化三溴化硼处理甲醇,得到芳基烷基 或芳基烯基溴,然后用碘代替溴原子。

    4(or 3)-(3,4-Dihydroxyphenyl)pyridines, their cardiotonic use and
cardiotonic use of their methyl ethers
    9.
    发明授权
    4(or 3)-(3,4-Dihydroxyphenyl)pyridines, their cardiotonic use and cardiotonic use of their methyl ethers 失效
    4(或3) - (3,4-二羟基苯基)吡啶,它们的强心使用和强心使用它们的甲基醚

    公开(公告)号:US4302462A

    公开(公告)日:1981-11-24

    申请号:US175283

    申请日:1980-08-04

    IPC分类号: C07D213/30 A61K31/44

    CPC分类号: C07D213/30

    摘要: 4(or 3)-(3,4-Dihydroxyphenyl)pyridine, a cardiotonic agent, is prepared by demethylating 4(or 3)-(3,4-dimethoxyphenyl)pyridine, preferably by heating with aqueous hydrogen bromide. 4(or3)-[3,4-di-(OR)-phenyl]pyridine, where R is hydrogen or methyl, or pharmaceutically-acceptable acid-addition salt thereof is disclosed as the active component in a cardiotonic composition for increasing cardiac contractility and in the method for increasing cardiac contractility in a patient requiring such treatment. The novel isomeric 2-[3,4-di-(OR)-phenyl]pyridine, where R is hydrogen or methyl, is shown for comparative purposes.

    摘要翻译: 通过使4(或3) - (3,4-二甲氧基苯基)吡啶脱甲基,优选通过用溴化氢水溶液加热来制备4(或3) - (3,4-二羟基苯基)吡啶,强心剂。 公开了其中R为氢或甲基的4(或3) - [3,4-二(OR) - 苯基]吡啶或其药学上可接受的酸加成盐作为增强心脏收缩力的强心剂组合物中的活性成分 以及在需要这种治疗的患者中增加心脏收缩力的方法。 为了比较目的,显示出新的异构2- [3,4-二(OR) - 苯基]吡啶,其中R是氢或甲基。

    Aryl substituted diketones
    10.
    发明授权
    Aryl substituted diketones 失效
    芳基取代二酮

    公开(公告)号:US4275201A

    公开(公告)日:1981-06-23

    申请号:US12206

    申请日:1979-02-14

    申请人: Joseph C. Collins

    发明人: Joseph C. Collins

    CPC分类号: C07C45/74 C07C37/055

    摘要: Aryl substituted diketones and keto-esters, useful as antiviral agents and insecticides, are prepared by reacting an arylalkyl or arylalkenyl iodide with a metal salt of the appropriate diketone or keto-ester.

    摘要翻译: 通过使芳基烷基或芳基烯基碘与适当的二酮或酮酯的金属盐反应来制备用作抗病毒剂和杀虫剂的芳基取代的二酮和酮酯。