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    • 9. 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。