Methods of preparing intermediate of fluticasone propionate
    2.
    发明授权
    Methods of preparing intermediate of fluticasone propionate 有权
    制备丙酸氟替卡松中间体的方法

    公开(公告)号:US09303060B1

    公开(公告)日:2016-04-05

    申请号:US14688960

    申请日:2015-04-16

    IPC分类号: C07J31/00

    摘要: A method of preparing a thioic acid intermediate of fluticasone propionate includes: treating a 17β-[(N,N-dimethyl carbamoyl)thio]carbonyl compound in a solution including an alcohol and an alkali metal hydroxide, an alkaline-earth metal hydroxide, or a mixture thereof to cleave an amide from the 17β-[(N,N-dimethyl carbamoyl)thio]carbonyl compound; treating the solution to separate an aqueous portion; and adding an acid to the aqueous portion to obtain the thioic acid intermediate of fluticasone propionate. A method of preparing fluticasone propionate includes preparing the thioic acid intermediate of fluticasone propionate, and alkylating the thioic acid intermediate of fluticasone propionate to prepare the fluticasone propionate.

    摘要翻译: 丙酸氟替卡松的硫酸中间体的制备方法包括:在包含醇和碱金属氢氧化物的溶液中处理17β-[(N,N-二甲基氨基甲酰基)硫代]羰基化合物,碱土金属氢氧化物, 或其混合物从17β-[(N,N-二甲基氨基甲酰基)硫代]羰基化合物切割酰胺; 处理溶液以分离水性部分; 并向水性部分加入酸,得到丙酸氟替卡松的硫酸中间体。 制备丙酸氟替卡松的方法包括制备丙酸氟替卡松的硫酸中间体,并将丙酸氟替卡松的硫酸中间体烷基化以制备丙酸氟替卡松。

    Preparation and use of new solvates of beclomethasone 17,21-dipropionate
    10.
    发明授权
    Preparation and use of new solvates of beclomethasone 17,21-dipropionate 失效
    制备和使用17-二丙酸倍氯米松的新溶剂合物

    公开(公告)号:US4913892A

    公开(公告)日:1990-04-03

    申请号:US758287

    申请日:1985-07-24

    IPC分类号: A61K9/00 C07J5/00

    CPC分类号: A61K9/008 C07J5/0076

    摘要: Preparation of novel solvates of beclomethasone 17,21-dipropionate, by dissolution of beclomethasone 17,21-dipropionate in an ethereal or halogenated hydrocarbon solvent and precipitation by the addition of di-isopropyl ether. These new solvates are bulk stable, in both the micronized and non-micronized forms. The micronized form is especially suitable for the preparation of stable aerosol.

    摘要翻译: 通过将17,21-二丙酸倍氯米松溶解在醚类或卤代烃溶剂中并通过加入二异丙醚沉淀来制备17-二丙酸倍氯米松的新溶剂合物。 这些新的溶剂化物在微粉化和非微粉化形式中都是稳定的。 微粉化形式特别适用于制备稳定的气溶胶。