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    • 13. 发明申请
    • PROCESS FOR THE PREPARATION OF ZAFIRLUKAST
    • 制备ZAFIRLUKAST的方法
    • WO0246153A2
    • 2002-06-13
    • PCT/IB0102268
    • 2001-11-30
    • ISP FINETECH LTDGUTMAN ARIENISNEVICH GENNADYZALTZMAN IGORPONOMAREV VICTORSOTRIHIN MAXIM
    • GUTMAN ARIENISNEVICH GENNADYZALTZMAN IGORPONOMAREV VICTORSOTRIHIN MAXIM
    • C07D209/18C07D209/24C07D209/00
    • C07D209/18C07D209/24Y02P20/582
    • The present invention provides a novel process for the preparation of alkyl (1-alkylindol-3-ylmethyl)benzoate derivatives which process comprises the steps of: (a) reacting of an alkyl (halomethyl)benzoate with excess of an indole, said indole being unsubstituted at positions 1-, 2- and 3-, under conditions promoting alkylation at the 3-position of the indole to yield a mixture comprising alkyl (indol-3-ylmethyl)benzoate and unreacted starting indole,(b) treating the mixture obtained in step (a) with base to yield a mixture, comprising the salt of (indol-3-ylmethyl)benzoic acid and the unreacted indole, (c) recovering the unreacted indole from the mixture obtained in step (b), and recycling the indole as starting material to step (a),(d) isolating the salt of (indol-3-ylmethyl)benzoic acid and/or acidifying the salt to form (indol-3-ylmethyl)benzoic acid, (e) reacting the (indol-3-ylmethyl)benzoic acid or it's salt with alkylating agent in the presence of base to form the desired alkyl (1-alkylindol-3-ylmethyl)benzoate. The above process affords also the preparation of the anti-asthmatic leukotriene antagonist zafirlukast. In such case, methyl 3-methoxy-4-(1-methyl-5-nitroindol-3-ylmethyl)benzoate [1a] is formed in step (e) of the process and this compound is subsequently converted into zafirlukast by known methods.
    • 本发明提供了一种制备烷基(1-烷基吲哚-3-基甲基)苯甲酸酯衍生物的新方法,该方法包括以下步骤:(a)使(卤代甲基)烷基烷基酯与过量的吲哚反应,所述吲哚为 在吲哚的3位上促进烷基化的条件下,在位置1-,2-和3-未被取代,得到包含烷基(吲哚-3-基甲基)苯甲酸酯和未反应的起始吲哚的混合物,(b)处理得到的混合物 在步骤(a)中与碱反应以产生包含(吲哚-3-基甲基)苯甲酸的盐和未反应的吲哚的混合物,(c)从步骤(b)中获得的混合物中回收未反应的吲哚,并将 吲哚作为步骤(a)的起始原料,(d)分离(吲哚-3-基甲基)苯甲酸的盐和/或酸化盐以形成(吲哚-3-基甲基)苯甲酸,(e)使 吲哚-3-基甲基)苯甲酸或其与烷基化剂的盐在碱的存在下形成所需的烷基 (1-alkylindol -3-基甲基)苯甲酸甲酯。 上述方法还提供了抗哮喘白三烯拮抗剂扎非司酮的制备。 在这种情况下,在该方法的步骤(e)中形成3-甲氧基-4-(1-甲基-5-硝基吲哚-3-基甲基)苯甲酸甲酯[1a],该化合物随后通过已知方法转化成扎非司酮。
    • 20. 发明申请
    • PROCESS AND INTERMEDIATES FOR PRODUCTION OF CABERGOLINE AND RELATED COMPOUNDS
    • 生产咖啡因及相关化合物的方法和中间体
    • WO2002085902A1
    • 2002-10-31
    • PCT/IL2001/000344
    • 2001-04-16
    • FINETECH LTD.GUTMAN, Arie, L.NISNEVICH, GennadiyRUKHMAN, IgorTISHIN, BorisVILENSKY, AlexPERTSIKOV, Boris
    • GUTMAN, Arie, L.NISNEVICH, GennadiyRUKHMAN, IgorTISHIN, BorisVILENSKY, AlexPERTSIKOV, Boris
    • C07D457/06
    • C07D457/06
    • A process for preparation of N -(ergoline-8β-carbonyl)ureas of the formula [I] their stereoisomers as well as acid addition salts thereof which process comprises silylating an ergoline -8β-carboxamide of the formula [2], their stereoisomers as well as metal or ammonium salts or acid addition salts thereof and reacting the resultant product with an isocyanates R 1 N=C=O [5] wherein R 1 is selected from alkyl having from 1 to 4 carbon atoms, cyclohexyl, phenyl, and dimethylamino alkyl group -(CH 2 ) n NMe 2 in which n is an integer, R 2 is selected from hydrogen, alkyl having from 1 to 4 carbon atoms, cyclohexyl, phenyl, dimethylamino alkyl group -(CH 2 ) n NMe 2 in which n is an integer, pyridyl, pyrimidyl, pyrazinyl, pyridazinyl, thiazolyl or thiadiazolyl , R 3 represents a hydrocarbon group having from 1 to 4 carbon atoms, and R 4 is selected from hydrogen, halogen, methylthio and phenylthio group; followed by desilylation. This novel approach provides an efficient method for preparation of N -(ergoline-8β-carbonyl)ureas of the formula [I] which can be useful as anty-Parkinson drugs and prolactin inhibitors. One of the most potent antiprolactinic agent of the class of compounds prepared according to the present invention is Cabergoline. Silylated ergolines, which are obtained as intermediates in the process of the present invention, are novel compounds and represent a further aspect of the invention.
    • 制备式[I]的N-(麦角灵-8β-羰基)脲的方法及其酸加成盐,其方法包括使麦角灵-8β-甲酰胺甲硅烷基化 式[2],其立体异构体以及金属或铵盐或其酸加成盐,并使所得产物与异氰酸酯R 1 = C = O [5]反应,其中R 1选自具有 1至4个碳原子,环己基,苯基和二甲基氨基烷基 - (CH 2)n NMe 2,其中n是整数,R 2选自氢,具有1至4个碳原子的烷基,环己基,苯基,二甲基氨基 烷基 - (CH 2)n NMe 2,其中n是整数,吡啶基,嘧啶基,吡嗪基,哒嗪基,噻唑基或噻二唑基,R 3表示具有1至4个碳原子的烃基,R 4选自 氢,卤素,甲硫基和苯硫基; 然后脱甲硅烷基化。 这种新方法提供了一种制备式[I]的N - (麦角灵-8β-羰基)脲的有效方法,其可用作非帕特森帕金森药物和催乳素抑制剂。 根据本发明制备的化合物类别中最有效的促乳素剂之一是卡麦角林。 在本发明的方法中作为中间体获得的甲硅烷基化的麦角糖是新的化合物,代表本发明的另一方面。