Corrosion inhibition with bilayer-forming surfactants
    1.
    发明授权
    Corrosion inhibition with bilayer-forming surfactants 失效
    用双层形成表面活性剂进行腐蚀抑制

    公开(公告)号:US5456767A

    公开(公告)日:1995-10-10

    申请号:US137657

    申请日:1993-10-15

    CPC分类号: C23F11/10 C09K8/54

    摘要: A method for inhibiting corrosion of a metal surface in a liquid medium is described. The method comprises incorporating into the medium a corrosion inhibiting amount of a combination of a surfactant that forms a bilayer on the metal surface in the fluid and a corrosion inhibitor that solubilizes in the medium in the presence of the surfactant. The amount of surfactant is sufficient to produce a bilayer on the metal surface in the medium. The combination isa. an anionic surfactant that forms a bilayer on the metal surface and a cationic corrosion inhibitor;b. a cationic surfactant that forms a bilayer on the metal surface and an anionic corrosion inhibitor;c. an ionic surfactant that forms a bilayer on the metal surface and an ionic corrosion inhibitor having a pendent, generally straight chain hydrocarbon or substituted hydrocarbon moiety of from about 10 to about 18 carbon atoms; ord. an ionic surfactant that forms a bilayer on the metal surface and a non-ionic corrosion inhibitor.Related compositions and methods are also disclosed.

    摘要翻译: 描述了一种用于抑制液体介质中的金属表面腐蚀的方法。 该方法包括在介质中加入腐蚀抑制量的在流体中的金属表面上形成双层的表面活性剂和在表面活性剂存在下溶解在介质中的腐蚀抑制剂的组合。 表面活性剂的量足以在介质中的金属表面上产生双层。 组合是一个。 在金属表面形成双层的阴离子表面活性剂和阳离子缓蚀剂; b。 在金属表面上形成双层的阳离子表面活性剂和阴离子腐蚀抑制剂; C。 在金属表面上形成双层的离子型表面活性剂和具有约10至约18个碳原子的侧链,通常为直链烃或取代烃部分的离子腐蚀抑制剂; 或d。 在金属表面上形成双层的离子表面活性剂和非离子腐蚀抑制剂。 还公开了相关的组合物和方法。

    Methods for the syntheses of alfentanil, sufentanil and remifentanil
    3.
    发明授权
    Methods for the syntheses of alfentanil, sufentanil and remifentanil 失效
    合成阿芬太尼,舒芬太尼和瑞芬太尼的方法

    公开(公告)号:US07074935B2

    公开(公告)日:2006-07-11

    申请号:US10130324

    申请日:2000-12-04

    IPC分类号: C07D401/06

    摘要: Synthetic pathways are disclosed for synthesizing derivatives or analogs of fentanyl. Specifically set out are pathways for synthesizing alfentanil, sufentanil and remifentanil. The disclosed methods require fewer steps and produce a greater yield of product than methods reported in the prior art. The pathways to all these compounds begin with a common pathway of condensing a piperidone with a primary amine so as to form a 4-amino carboxyamino-piperidine, wherein N of said piperidone is a —N—COO—(CH2)nCH3, alkylating an N of said primary amine which was condensed with said piperidone thereby producing an N-alkyl-anilide, and hydrolyzing said —COO—(CH2)nCH3? group of said 4-amino-4-carboxyamino-piperidine following the condensation reaction so as to form a piperidine hydrolysis product. This product can then be convened to remifentanil in a 4 step reaction. Also, this hydrolysis product can be treated with a hydride to yield a 4-hydroxymthyl-piperidine which can be converted to alfentanil in 3 further steps, to sufentanil in 3 more steps, or to a variety of remifentanil analogs in two steps.

    摘要翻译: 公开合成途径用于合成芬太尼的衍生物或类似物。 具体列出了合成阿芬太尼,舒芬太尼和瑞芬太尼的途径。 与现有技术中报道的方法相比,所公开的方法需要更少的步骤并产生更高的产率。 所有这些化合物的途径首先是将哌啶酮与伯胺缩合以形成4-氨基羧基氨基 - 哌啶的共同途径,其中所述哌啶酮的N是-N-COO-(CH 2) 烷基化N与所述哌啶酮缩合的所述伯胺,从而制备N-烷基苯胺,并水解所述-COO- (CH 2 3 CH 3 在缩合反应之后的所述4-氨基-4-羧基氨基 - 哌啶基团,以便形成哌啶水解产物。 然后可以在四步反应中将该产物召集到瑞芬太尼。 此外,该水解产物可以用氢化物处理以产生4-羟基甲基哌啶,其可以再三步转化为阿芬太尼,再以3步的方式转化为舒芬太尼,或者在两个步骤中转化为各种瑞芬太尼类似物。

    Synthesis of 2,3-disubstituted-2-cyclopentenones via
lithiomethylmercapto compounds
    4.
    发明授权
    Synthesis of 2,3-disubstituted-2-cyclopentenones via lithiomethylmercapto compounds 失效
    通过锂二甲基巯基化合物合成2,3-二取代-2-环戊烯酮

    公开(公告)号:US5023382A

    公开(公告)日:1991-06-11

    申请号:US469901

    申请日:1990-01-24

    申请人: Jacob Mathew

    发明人: Jacob Mathew

    IPC分类号: C07C45/67 C07D339/08

    CPC分类号: C07C45/673 C07D339/08

    摘要: 2,3-disubstituted-2-cyclopenenones (such as cisjasmone) are prepared by (a) reacting an alkl 2-chloro-2,3-disubstituted-3-butenoate with a lithiomercaptan compound, (b) subjecting that product to reductive dehydrosulfurization. Methods of preparing the reactants are also disclosed.

    摘要翻译: 通过(a)使2-氯-2,3-二取代-3-丁烯酸醇与硫醇化合物反应制备2,3-二取代-2-环戊烯酮(如顺式茉莉酮酮),(b)使该产物还原脱氢脱硫 。 还公开了制备反应物的方法。

    Alkyl-2-thiosubstituted-3-substituted-2-butenoates and their synthesis
    5.
    发明授权
    Alkyl-2-thiosubstituted-3-substituted-2-butenoates and their synthesis 失效
    烷基-2-硫代取代-3-取代-2-丁烯酸酯及其合成

    公开(公告)号:US5089611A

    公开(公告)日:1992-02-18

    申请号:US492511

    申请日:1990-03-12

    申请人: Jacob Mathew

    发明人: Jacob Mathew

    IPC分类号: C07C323/54 C07D279/08

    CPC分类号: C07C323/54 C07D279/08

    摘要: An alkyl 2-thiosubstituted-3-substituted-2-butenoate ##STR1## is prepared by reacting an alkyl 2-chloro-3-substituted-3-butenoate with a thio compound under phase transfer conditions.

    摘要翻译: 在相转移条件下使2-氯-3-取代-3-丁烯酸烷基酯与硫代化合物反应来制备2-取代-3-取代-2-丁烯酸烷基酯。

    New methods for the synthesis of alfentanil, sufentanil, and remifentanil
    7.
    发明申请
    New methods for the synthesis of alfentanil, sufentanil, and remifentanil 失效
    合成阿芬太尼,舒芬太尼和瑞芬太尼的新方法

    公开(公告)号:US20060149071A1

    公开(公告)日:2006-07-06

    申请号:US11362498

    申请日:2006-02-24

    IPC分类号: C07D211/56

    摘要: Synthetic pathways are disclosed for synthesizing derivatives or analogs of fentanyl. Specifically set out are pathways for synthesizing alfentanil, sufentanil and remifentanil. The disclosed methods require fewer steps and produce a greater yield of product than methods reported in the prior art.

    摘要翻译: 公开合成途径用于合成芬太尼的衍生物或类似物。 具体列出了合成阿芬太尼,舒芬太尼和瑞芬太尼的途径。 与现有技术中报道的方法相比,所公开的方法需要更少的步骤并产生更高的产率。

    (2S, 3R)-N-(2-((3-PYRIDINYL)METHYL)-1-AZABICYCLO[2.2.2]OCT-3-YL)BENZOFURAN-2-CARBOXAMIDE, NOVEL SALT FORMS, AND METHODS OF USE THEREOF
    9.
    发明申请
    (2S, 3R)-N-(2-((3-PYRIDINYL)METHYL)-1-AZABICYCLO[2.2.2]OCT-3-YL)BENZOFURAN-2-CARBOXAMIDE, NOVEL SALT FORMS, AND METHODS OF USE THEREOF 有权
    (2S,3R)-N-(2 - ((3-吡啶基)甲基)-1-氮杂双环[2.2.2] OCT-3-YL)苯并呋喃-2-羧酰胺,新型盐形式及其使用方法

    公开(公告)号:US20110263859A1

    公开(公告)日:2011-10-27

    申请号:US13116163

    申请日:2011-05-26

    IPC分类号: C07D453/02

    CPC分类号: C07D453/02 A61K31/439

    摘要: The present invention relates to (2S,3R)-N-(2((3-pyridiny)triethyl)-1-azabicyclo[2.2.2]oct-3-yl)benzofuran-2-carboxamide, novel salt forms thereof, methods for its preparation, novel intermediates, and methods for treating a wide variety of conditions and disorders, including those associated with dysfunction of the central and autonomic nervous systems.

    摘要翻译: 本发明涉及(2S,3R)-N-(2((3-吡啶基)三乙基)-1-氮杂双环[2.2.2]辛-3-基)苯并呋喃-2-甲酰胺,其新的盐形式, 用于其制备,新型中间体和用于治疗各种各样的病症和障碍的方法,包括与中枢和自主神经系统的功能障碍相关的那些。