Process for the production of 1-(aminomethyl)cyclohexane acetic acid
    4.
    发明授权
    Process for the production of 1-(aminomethyl)cyclohexane acetic acid 失效
    制备1-(氨基甲基)环己烷乙酸的方法

    公开(公告)号:US5149870A

    公开(公告)日:1992-09-22

    申请号:US786721

    申请日:1991-11-01

    摘要: A new process is described for the production of 1-(aminomethyl)cyclohexane acetic acid, a pharmaceutical agent used as an anticonvulsant. For this purpose a (1-cyanocyclohexyl)malonic acid dialkyl ester is decarbalkoxylated to the corresponding (1-cyanocyclohexyl)acetic acid alkyl ester, then transesterified with a benzyl alcohol and finally hydrogenated to form the end product.

    摘要翻译: 描述了用于生产用作抗惊厥药的药物的1-(氨基甲基)环己烷乙酸的新方法。 为此,(1-氰基环己基)丙二酸二烷基酯对相应的(1-氰基环己基)乙酸烷基酯进行脱烷基氧化,然后用苄醇酯交换并最终氢化形成最终产物。

    2-aza-4-(alkoxycarbonyl)spiro[4,5]decan-3-one
    5.
    发明授权
    2-aza-4-(alkoxycarbonyl)spiro[4,5]decan-3-one 失效
    2-烷基-4-(烷氧基羰基)螺[4,5]癸-3-酮

    公开(公告)号:US4956473A

    公开(公告)日:1990-09-11

    申请号:US400820

    申请日:1989-08-30

    摘要: 2-Aza-4-(alkoxycarbonyl)spiro[4,5]-decan-3-one and a process for the production of it, starting either from cyclohexylidene malonic acid esters or cyclohexylidene cyanoalkylates. The cyclohexylidene malonic acid ester is reacted with hydrocyanic acid in the presence of a catalytic amount of alkali cyanide or with a stoichiometric amount of alkali cyanide, in an alcohol, and subsequently treated with an acid. The resultant (1-cyanocyclohexyl) malonic acid dialkyl ester is converted by catalytic hydrogenation into the product. The cyclohexylidene cyanoalkylate is reacted with a stoichiometric amount of alkali cyanide, in an alcohol or with hydrocyanic acid in the presence of a catalytic amount of an alkali cyanide. The resultant (1-cyanocyclohexyl)-cyanoacetic acid alkyl ester is reacted in an alcohol in an acid to provide (1-cyanocyclohexyl) malonic acid dialkyl ester. The later ester is converted by catalytic hydrogenation into the product. Process of using the product for the production of 1-(aminomethyl)cyclohexane acetic acid by converting the product with HCl or sulfuric acid at an elevated temperature.

    摘要翻译: 2-氮杂-4-(烷氧基羰基)螺[4,5] - 癸烷-3-酮及其制备方法,由亚环己基丙二酸酯或环己基氰基烷基酯开始。 在催化量的碱金属氰化物或化学计量的碱金属氰化物存在下,在醇中,将亚环己基丙二酸酯与氢氰酸反应,随后用酸处理。 所得(1-氰基环己基)丙二酸二烷基酯通过催化氢化转化成产物。 环己基氰基烷基化物与化学计量的碱金属氰化物,在醇中或与氢氰酸在催化量的碱金属氰化物的存在下反应。 所得(1-氰基环己基) - 氰基乙酸烷基酯在醇中在酸中反应,得到(1-氰基环己基)丙二酸二烷基酯。 后期的酯通过催化氢化转化成产物。 通过在高温下用HCl或硫酸转化产物来使用该产物生产1-(氨基甲基)环己烷乙酸的方法。

    Process for the production of
4-amino-2-chloro-5-cyano-6-(methylthio)pyrimidine
    6.
    发明授权
    Process for the production of 4-amino-2-chloro-5-cyano-6-(methylthio)pyrimidine 失效
    生产4-氨基-2-氯代-5-氰基-6-(甲基)吡嗪的方法

    公开(公告)号:US5216160A

    公开(公告)日:1993-06-01

    申请号:US865251

    申请日:1992-04-08

    IPC分类号: C07D239/47 C07D239/46

    CPC分类号: C07D239/47

    摘要: 4-Amino-2-chloro-5-cyano-6-(methylthio)primidine is produced from dicyanoketene dimethyl thioacetal and cyanamide by condensation in the presence of a base and subsequent cyclization in the presence of hydrochloric acid. The dicyanoketenedimeth thioacetal is available by reaction of malononitrile, with carbon disulfide and a base and subsequent methylation with dimethyl sulfate. The reaction sequence yields the pyrimidine derivative in good yield and practically free of by-products.

    摘要翻译: 4-氨基-2-氯-5-氰基-6-(甲硫基)基基二苯胺由二氰基二甲基硫代缩醛和氨基氰在碱存在下缩合,随后在盐酸存在下环化制备。 二氰基二甲硫醚可通过丙二腈与二硫化碳和碱反应获得,随后用硫酸二甲酯进行甲基化反应。 反应顺序以良好的收率产生嘧啶衍生物,实际上不含副产物。

    Process for the production of 1-(aminomethyl) cyclohexane acetic acid
    7.
    发明授权
    Process for the production of 1-(aminomethyl) cyclohexane acetic acid 失效
    制备1-(氨基甲基)环己烷乙酸的方法

    公开(公告)号:US5136091A

    公开(公告)日:1992-08-04

    申请号:US786777

    申请日:1991-11-01

    摘要: A new process is described for the production of 1-(aminomethyl)cyclohexane acetic acid, a pharmaceutical agent used as an anticonvulsant. For this purpose a (1-cyanocyclohexyl)-malonic acid dialkyl ester is decarbalkoxylated to the corresponding (1-cyanocyclohexyl)acetic acid alkyl ester, then transesterified with a benzyl alcohol and finally hydrogenated to form the end product.

    摘要翻译: 描述了用于生产用作抗惊厥药的药物的1-(氨基甲基)环己烷乙酸的新方法。 为此,(1-氰基环己基) - 丙二酸二烷基酯对相应的(1-氰基环己基)乙酸烷基酯进行脱烷基氧化,然后用苄醇酯交换并最终氢化形成最终产物。

    Method for the production of aminocyanoacetamide
    8.
    发明授权
    Method for the production of aminocyanoacetamide 失效
    生产氨基氰乙酰胺的方法

    公开(公告)号:US5003099A

    公开(公告)日:1991-03-26

    申请号:US348054

    申请日:1989-05-05

    CPC分类号: C07C255/28

    摘要: A large-scale industrial process for the production of aminocyanoacetamide is disclosed. A starting material is cyanoacetic acid ester, which is treated with a nitrous acid in a first step to a corresponding hydroxy-iminocyanoacetic acid ester. The hydroxy-iminocyanoacetic acid ester is then hydrogenated and, in a following step, treated with ammonia for obtaining the final product aminocyanoacetamide.

    摘要翻译: 公开了用于生产氨基氰乙酰胺的大规模工业方法。 起始原料是氰基乙酸酯,其在第一步中用亚硝酸处理至相应的羟基 - 亚氨基乙酰乙酸酯。 然后将羟基 - 亚氨基氰基乙酸酯氢化,并在后续步骤中用氨处理以获得最终产物氨基氰基乙酰胺。