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    • 1. 发明申请
    • Process and intermediates to prepare17beta-hydroxy-7alpha-methyl-19-nor-17alpha-pregn -5(10)-en-20-yn-3-one
    • 制备17β-羟基-7α-甲基-19-去甲-17α-孕-5(10)-en-20-炔-3-酮的方法和中间体
    • US20060111332A1
    • 2006-05-25
    • US10530139
    • 2003-10-01
    • Jacek MartynowAndrzej KutnerWieslaw SzelejewskiWanda WojciechowskaHanna Fitak
    • Jacek MartynowAndrzej KutnerWieslaw SzelejewskiWanda WojciechowskaHanna Fitak
    • A61K31/56C07J7/00
    • C07J75/00C07J21/00
    • The present invention is a process for the preparation of 17β-hydroxy-7α-methyl-19-nor-17α-pregn-5(10)-en-20-yn-3-one (17α-ethynyl-17β-hydroxy-7α-methyl-5(10)-estren-3-one, tibolone) of formula 1, which comprises hydrolysis of 17α-ethynyl-17β-hydroxy-7α-methyl-5(10)-estrene 3,3-cyclic ketals of formula 2, where groups R1, R2, R3 and R4 are hydrogen atoms or alkyl groups, or R1 and R3, taken together with the carbon atoms within the dioxolane ring to which they are attached, form an alicyclic ring fused to the dioxolane ring, with R2 and R4 being hydrogen atoms, or R1 and R3 together with the carbon atoms to which they are attached form an aromatic ring fused to the dioxolane ring, where R2 and R4, taken together, form a chemical bond within said aromatic ring. In addition, the present invention includes an intermediate, compound of formula 2 and two processes to prepare 17α-ethynyl-17β-hydroxy-7α-methyl-5(10)-estrene 3,3-cyclic ketals of formula 2: (a) by contacting 17α-ethynyl-17β-hydroxy-7α-methyl-4-estren-3-one with vicinal diols in the presence of a protic acid, and (b) by contacting 7α-methyl-5(10)-estrene-17-one 3,3-cyclic ketals of formula 4, where R1-R4 are defined as above, with metal acetylides, in inert solvents.
    • 本发明是制备17β-羟基-7α-甲基-19-去甲-17α-孕-5(10)-en-20-炔-3-酮(17α-乙炔基-17β-羟基-7α - 甲基-5(10) - 雌酚-3-酮,替勃龙酮),其包括式17α-乙炔基-17β-羟基-7α-甲基-5(10) - 雌甾3,3-环缩酮的式 2,其中基团R 1,R 2,R 3和R 4是氢原子或烷基, 或R 1和R 3与它们所连接的二氧杂环戊烷环内的碳原子一起形成稠合到二氧戊环的脂环, R 2和R 4均为氢原子,或者R 1和R 3与它们所在的碳原子一起 连接形成与二氧杂环戊烷环稠合的芳环,其中R 2和R 4一起在所述芳环中形成化学键。 另外,本发明包括中间体式2化合物和两种制备式2的17α-乙炔基-17β-羟基-7α-甲基-5(10) - 雌甾3,3-环缩酮的方法:(a) 通过在质子酸存在下将17α-乙炔基-17β-羟基-7α-甲基-4-雌酮-3-酮与邻位二醇接触,和(b)通过使7α-甲基-5(10) - 雌二醇-17 - 一种式4的3,3-环缩酮,其中R 1 -R 4定义如上,与金属乙炔化物在惰性溶剂中。