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    • 5. 发明授权
    • Process for preparing d-2-(6-methoxy-2-naphthyl)-propionic acid and
intermediate thereof
    • 制备d-2-(6-甲氧基-2-萘基) - 丙酸及其中间体的方法
    • US5179208A
    • 1993-01-12
    • US889232
    • 1992-05-28
    • In O. KimChoong E. SongJae K. Lee
    • In O. KimChoong E. SongJae K. Lee
    • C07C51/00C07D263/22
    • C07D263/22C07C51/00
    • A process for the prepaation of d-2-(6-methoxy-2-naphthyl)-propionic acid of formula (I) used as nonsteroid antipyretic analgesics, which comprises reacting oxazolidinone of formula (II) with 6-methoxy-2-naphthylacetchloride of formula (IV), methylizing [N-(y-methoxy-2-naphthyl)acetyl]-oxazolidinone of formula (N), and reacting[N-(2S)-2-(6-methoxy-2-naphthyl)-propionyl]-oxazolidinone of formula (VI) in alkali metal hydroxy, and intermediate compound obtained by the process, [N-(6-methoxy-2-naphthyl)acetyl]-oxazolidinone of formula (V) and [N-(2S)-2-(6-methoxy-2-naphthyl)-propionyl]-oxazolidinone (VI) ##STR1## wherein R.sup.1 is methyl, isopropyl, secondary-butyl, tert-butyl, benzyl, or phenyl group, and R.sup.2 is hydrogen or phenyl group.
    • 用于制备用作非类固醇解热镇痛药的式(I)的d-2-(6-甲氧基-2-萘基) - 丙酸的方法,其包括将式(II)的恶唑烷酮与6-甲氧基-2-萘基乙酰氯 (IV)的甲基化,使式(N)的[N-(γ-甲氧基-2-萘基)乙酰基] - 恶唑烷酮甲基化,并使[N-(2S)-2-(6-甲氧基-2-萘基) - (VI)的丙酰基]恶唑烷酮和通过该方法获得的中间体化合物,式(V)的[N-(6-甲氧基-2-萘基)乙酰基] - 恶唑烷酮和[N-(2S) (VI)成像(VI)成像(VI)成像(VI)成像(VI) 其中R1是甲基,异丙基,仲丁基,叔丁基,苄基或苯基,R 2是氢或苯基。