US2019225584A1PendingUtilityA1
Low hygroscopic aripiprazole drug substance and processes for the preparation thereof
Est. expirySep 25, 2021(expired)· nominal 20-yr term from priority
Inventors:Takuji BandoSatoshi AokiJunichi KawasakiMakoto IshigamiYouichi TaniguchiTsuyoshi YabuuchiKiyoshi FujimotoYoshihiro NishiokaNoriyuki KobayashiTsutomu FujimuraMasanori TakahashiKaoru AbeTomonori NakagawaKoichi ShinhamaNaoto UtsumiMichiaki TominagaYoshihiro OoiShohei YamadaKenji Tomikawa
A61P 25/16A61P 25/06A61P 25/22A61P 25/00A61P 25/18A61P 3/04A61P 25/28A61P 25/04A61P 25/20A61P 25/32A61P 25/30A61P 25/24A61P 15/10A61P 15/00A61P 1/08C07B 2200/13Y10T428/2982A61K 9/2018C07D 215/227A61K 9/1652C07D 215/22A61K 9/2013A61K 9/2059A61K 31/496
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Abstract
The present invention provides low hygroscopic forms of aripiprazole and processes for the preparation thereof which will not convert to a hydrate or lose their original solubility even when a medicinal preparation containing the anhydrous aripiprazole crystals is stored for an extended period.
Claims
exact text as granted — not AI-modified1 . Hydrate A of aripiprazole having a powder x-ray diffraction spectrum comprising characteristic peaks at 2θ=12.6°, 15.4°, 17.3°, 18.0°, 18.6°, 22.5°, and 24.8° using a Cu Kα x-ray.
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