Benzoxazine derivatives, methods for obtaining same, and their use as
drugs
    2.
    发明授权
    Benzoxazine derivatives, methods for obtaining same, and their use as drugs 失效
    苯并恶嗪衍生物,其获得方法及其作为药物的用途

    公开(公告)号:US5804580A

    公开(公告)日:1998-09-08

    申请号:US666552

    申请日:1996-07-01

    摘要: Compounds are provided corresponding to the following general formula (I): in which:--R.sub.1 and R.sub.2, independently of each other, represent an alkyl group with 1 to 3 carbon atoms, or a group of formula --CH.sub.2 --OR.sub.a, R.sub.a representing a hydrogen atom or a methyl group R.sub.x represents: an alkyl group with 1 to 3 carbon atoms, in particular a methyl group, or an --OR.sub.x1 group, R.sub.x1 representing an alkyl group with 1 to 3 carbon atoms, in particular a methoxy group, or a group of formula --CH.sub.2 --X in which X represents a halogen atom, in particular chlorine, or a group of formula (a) ##STR1## in which: R.sub.3 and R.sub.5, independently of each other, represent a hydrogen atom, or an --OH group, or an --OCH.sub.3 group, R.sub.4 represents a hydrogen atom, or an --OR.sub.b group, R.sub.b representing a hydrogen atom or a methyl group, or R.sub.4 represents a group of formula --Or.sub.c, R.sub.c representing a group of formula --CH.sub.2 --CO--C.sub.6 H.sub.4 R'. The present compounds are benzoxazine derivatives which are used for treating pathological conditions associated with the presence of free radicals, such as Alzheimer's disease, and methods are provided for preparation of these compounds.

    摘要翻译: PCT No.PCT / FR94 / 01557 Sec。 371日期:1996年7月1日 102(e)日期1996年7月1日PCT 1994年12月29日PCT PCT。 公开号WO95 / 18114 日期:1995年7月6日化合物相应于下列通式(I)而提供:其中-R 1和R 2彼此独立地表示具有1至3个碳原子的烷基或式-CH 2 - ORa,代表氢原子或甲基的R a表示:具有1至3个碳原子的烷基,特别是甲基或-OR x 1基团,R 1表示具有1至3个碳原子的烷基,特别是 甲氧基或其中X表示卤素原子,特别是氯的式-CH 2 -X的基团,或式(a)的基团:其中:R 3和 R5彼此独立地表示氢原子,-OH基或-OCH3基,R4表示氢原子或-ORb基,Rb表示氢原子或甲基,或R4表示 式-Orc的基团,Rc表示式-CH2-CO-C6H4R'的基团。 本发明化合物是用于治疗与自由基如阿尔茨海默氏病有关的病理状况的苯并恶嗪衍生物,提供了制备这些化合物的方法。