Processes for the manufacturing of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide
    2.
    发明授权
    Processes for the manufacturing of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide 失效
    制备3-羟基-N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺的方法

    公开(公告)号:US06476229B1

    公开(公告)日:2002-11-05

    申请号:US10100107

    申请日:2002-03-19

    申请人: Tim F. Tam Wanren Li

    发明人: Tim F. Tam Wanren Li

    IPC分类号: C07D21186

    CPC分类号: C07D213/81 C07D309/40

    摘要: The present invention relates to a novel process for the preparation of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide of formula I: The method comprises of the TEMPO oxidation of a primary alcohol of 3-O-protected-2-hydroxymethyl-6-alkyl-4H-pyran-4-one of formula III to 3-O-protected-6-alkyl-4-oxo-4H-pyran-2-carboxylic acid of formula II. Reaction of compound of formula II with methylamine and 1,1-carbonyldiimidazole in an inert solvent affords 3-O-protected-N, 1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide, which is deprotected to give of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide of formula I.

    摘要翻译: 本发明涉及制备式I的3-羟基-N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺的新方法:该方法包括以下步骤:将TEMPO氧化为 将式III的3-O-保护的2-羟甲基-6-烷基-4H-吡喃-4-酮的伯醇与3-O-保护的-6-烷基-4-氧代-4H-吡喃-2-羧酸 的式II。 式II化合物与甲胺和1,1-羰基二咪唑在惰性溶剂中的反应,得到3-O-保护的N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺,将其去保护 得到式I的3-羟基-N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺。

    Ynenolactone protease inhibitors
    3.
    发明授权
    Ynenolactone protease inhibitors 失效
    内酯内酯蛋白酶抑制剂

    公开(公告)号:US4602006A

    公开(公告)日:1986-07-22

    申请号:US608340

    申请日:1984-05-09

    CPC分类号: C07D309/32 C07D307/58

    摘要: Compounds of the formula ##STR1## wherein n is 1-3; R.sup.1, R.sup.2 and R.sup.3 are the same or different and are hydrogen, lower alkyl, lower alkenyl, lower alkynyl, aryl or aryl lower alkyl wherein when aryl is phenyl it is unsubstituted or independently substituted with one or more halo, lower alkyl or lower alkoxy groups; and R.sup.4 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, trialkylsilyl, aryl or aryl lower alkyl wherein when aryl is phenyl it is unsubstituted or independently substituted by one or more halo, lower alkyl or lower alkoxy groups; excluding those compounds wherein R.sup.1 and R.sup.2 are hydrogen and R.sup.4 is ethyl, propyl or butyl. These compounds are useful as protease inhibitors.

    摘要翻译: 其中n为1-3的式(Ⅰ)化合物; R 1,R 2和R 3相同或不同,为氢,低级烷基,低级烯基,低级炔基,芳基或芳基低级烷基,其中当芳基为苯基时,其未取代或独立地被一个或多个卤素,低级烷基或低级烷氧基 团体 R4是氢,低级烷基,低级烯基,低级炔基,三烷基甲硅烷基,芳基或芳基低级烷基,其中当芳基是苯基时,它是未被取代的或独立地被一个或多个卤素,低级烷基或低级烷氧基取代的; 不包括其中R 1和R 2为氢且R 4为乙基,丙基或丁基的那些化合物。 这些化合物可用作蛋白酶抑制剂。

    Processes for the manufacturing of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide
    4.
    发明授权
    Processes for the manufacturing of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide 失效
    制备3-羟基-N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺的方法

    公开(公告)号:US06426418B1

    公开(公告)日:2002-07-30

    申请号:US09985269

    申请日:2001-11-02

    申请人: Tim F. Tam Wanren Li

    发明人: Tim F. Tam Wanren Li

    IPC分类号: C07D21174

    CPC分类号: C07D213/81 C07D309/40

    摘要: The present invention relates to a novel process for the preparation of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide of formula I: The method comprises of the TEMPO oxidation of a primary alcohol of 3-O-protected-2-hydroxymethyl-6-alkyl-4H-pyran-4-one of formula III to 3-O-protected-6-alkyl-4-oxo-4H-pyran-2-carboxylic acid of formula II. Reaction of compound of formula II with methylamine and 1,1-carbonyldiimidazole in an inert solvent affords 3-O-protected-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide, which is deprotected to give of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide of formula I.

    摘要翻译: 本发明涉及制备式I的3-羟基-N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺的新方法:该方法包括以下步骤:将TEMPO氧化为 将式III的3-O-保护的2-羟甲基-6-烷基-4H-吡喃-4-酮的伯醇与3-O-保护的-6-烷基-4-氧代-4H-吡喃-2-羧酸 的式II。 式II化合物与甲胺和1,1-羰基二咪唑在惰性溶剂中的反应,得到3-O-保护的N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺,将其去保护 得到式I的3-羟基-N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺。

    Processes for the manufacturing of 3-hydroxy-n,1,6-trialkyl-4-OXO-1,4-dihydropyridine-2-carboxamide
    6.
    发明授权
    Processes for the manufacturing of 3-hydroxy-n,1,6-trialkyl-4-OXO-1,4-dihydropyridine-2-carboxamide 失效
    制备3-羟基-n,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺的方法

    公开(公告)号:US06472532B1

    公开(公告)日:2002-10-29

    申请号:US10100133

    申请日:2002-03-19

    申请人: Tim F. Tam Wanren Li

    发明人: Tim F. Tam Wanren Li

    IPC分类号: C07D21186

    CPC分类号: C07D213/81 C07D309/40

    摘要: The present invention relates to a novel process for the preparation of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide of formula I: The method comprises of the TEMPO oxidation of a primary alcohol of 3-O-protected-2-hydroxymethyl-6-alkyl-4H-pyran-4-one of formula III to 3-O-protected-4-alkyl-4-oxo-4H-pyran-2-carboxylic acid of formula II. Reaction of compound of formula II with methylamine and 1,1-carbonyidiimidazole in an inert solvent affords 3-O-protected-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide, which is deprotected to give of 3-hydroxy-N,1,6-trialkyl-4-oxo-1,4-dihydropyridine-2-carboxamide of formula I.

    摘要翻译: 本发明涉及制备式I的3-羟基-N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺的新方法:该方法包括以下步骤:将TEMPO氧化为 将式III的3-O-保护的2-羟甲基-6-烷基-4H-吡喃-4-酮的伯醇与3-O-保护的-4-烷基-4-氧代-4H-吡喃-2-羧酸 的式II。 式II化合物与甲胺和1,1-碳亚氨基咪唑在惰性溶剂中反应,得到3-O-保护的N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺,将其去保护 得到式I的3-羟基-N,1,6-三烷基-4-氧代-1,4-二氢吡啶-2-甲酰胺。