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    • 21. 发明申请
    • PROCESS FOR PREPARING QUINAZOLONES
    • 制备喹喔啉的方法
    • WO1997028134A1
    • 1997-08-07
    • PCT/US1997001861
    • 1997-01-30
    • HOECHST CELANESE CORPORATION
    • HOECHST CELANESE CORPORATIONBHATTACHARYA, ApurbaALLEN, Diane, E.
    • C07D239/90
    • C07D239/90C07D239/70
    • The present invention provides a process for preparing a quinazolone which comprises the steps of (a) dehydrating a N-acyl beta amino acid in the presence of a dehydration agent and an organic solvent for a sufficient period of time and under suitable temperature and pressure conditions to form an oxazone, (b) adding a carboxylic acid and a primary amine salt of a carboxylic acid to said oxazone to form a mixture, (c) distilling azeotropically said mixture for a suitable period of time and under suitable temperature and pressure conditions to substantially remove said dehydration agent and said organic solvent, and (d) heating the product of step (c) for a sufficient period of time and under suitable temperature and pressure conditions to form said quinazolone.
    • 本发明提供一种制备喹唑酮的方法,该方法包括以下步骤:(a)在脱水剂和有机溶剂存在下,在适当的温度和压力条件下脱水N-酰基β氨基酸 (b)向所述恶唑酮中加入羧酸和羧酸伯胺盐以形成混合物,(c)将共沸蒸馏所述混合物一段适当的时间和温度和压力条件下,向 基本上除去所述脱水剂和所述有机溶剂,和(d)在合适的温度和压力条件下加热步骤(c)的产物足够的时间以形成所述喹唑啉酮。
    • 28. 发明申请
    • HISTONE DEACETYLASES (HDACS) INHIBITORS
    • HISTONE DEACETYLASES(HDACS)抑制剂
    • WO2013154870A1
    • 2013-10-17
    • PCT/US2013/035004
    • 2013-04-02
    • ANNJI PHARMACEUTICAL CO., LTD.HEALTHBANKS USA INC.
    • CHERN, Ji-WangYU, Chao-WuCHANG, Pei-Teh
    • C07D239/90
    • A61K31/517C07D239/91C07D403/06
    • Methods of treating diseases and conditions wherein inhibition of HDAC provides a benefit are also disclosed. In an embodiment of the invention, the compound is (2E)-3-(2-ethyl-6-fluoro-3,4-dihydro-4-oxo-3-phenethylquina20lin-7-yl)-N-hydroxyacrylamide, or a salt thereof. In another embodiment of the invention, the compound is (2E)-3-(2-ethyl-7-f1uoro-3,4-dihydro-4-oxo-3-phenethylquinazolin-6-yl)-N-hydroxyacrylamide, (2E)-3-(7-chloro-2-ethyl-3,4-dihydro-4-oxo-3-phenethylquinazolin-6-yl)-N-hydroxyacrylamide, or a salt thereof. In another aspect the invention relates to a composition comprising a therapeutically effective amount of a compound as aforementioned, or a pharmaceutically acceptable salt, a solvate or hydrate, a prodrug, or a metabolite thereof, and a pharmaceutically acceptable carrier or vehicle.
    • 还公开了治疗HDAC的抑制提供益处的疾病和病症的方法。 在本发明的一个实施方案中,化合物是(2E)-3-(2-乙基-6-氟-3,4-二氢-4-氧代-3-苯乙基喹唑啉-2-基)-N-羟基丙烯酰胺或 的盐。 在本发明的另一个实施方案中,化合物是(2E)-3-(2-乙基-7-氟-3,4-二氢-4-氧代-3-苯乙基喹唑啉-6-基)-N-羟基丙烯酰胺,(2E )-3-(7-氯-2-乙基-3,4-二氢-4-氧代-3-苯乙基喹唑啉-6-基)-N-羟基丙烯酰胺或其盐。 在另一方面,本发明涉及包含治疗有效量的如上所述的化合物或其药学上可接受的盐,溶剂合物或水合物,前药或代谢物,以及药学上可接受的载体或载体的组合物。