申请人:SmithKline Beecham p.l.c.
公开号:US06245778B1
公开(公告)日:2001-06-12
Compounds of formula (I) and pharmaceutically acceptable salts thereof:
where
R1 is hydrogen, C1-6 alkyl optionally substituted by hydroxy or C1-4alkoxy, or C1-6 alkylphenyl;
R2 is hydrogen or up to three substituents selected from halogen, NO2, CN, N3, C1-6 alkylO-, C1-6 alkylS-, C1-6 alkyl, C3-6cycloalkyl,
C3-6cycloalkyl-C1-4alkyl-, C1-6alkenyl, C1-6alkynyl, CF3, CF3O, CF3CO—, C1-6alkylCO-, C3-6cycloalkylCO-,
C3-6cycloalkyl-C1-4alkylCO-, phenyl, phenoxy, benzyloxy, benzoyl, phenyl-C1-4alkyl-,
or —NR3R4 where
R3 is hydrogen or C1-4 alkyl, and
R4 is hydrogen, C1-4alkyl, —CHO,
—CO2C1-4alkyl or —COC1-4alkyl;
or two R2 groups form a saturated carbocyclic ring optionally interrupted by oxygen;
and X is selected from hydrogen, halogen, cyano, alkyl and alkoxy;
are useful in the treatment and prophylaxis of inter alia epilepsy.
化合物I式及其药学上可接受的盐:其中R1为氢,C1-6烷基(可选用羟基或C1-4烷氧基取代),或C1-6烷基苯基;R2为氢或最多三个取代基,所选取代基来自卤素、NO2、CN、N3、C1-6烷氧基、C1-6烷硫基、C1-6烷基、C3-6环烷基、C3-6环烷基-C1-4烷基、C1-6烯基、C1-6炔基、CF3、CF3O、CF3CO—、C1-6烷基CO-、C3-6环烷基CO-、C3-6环烷基-C1-4烷基CO-、苯基、苯氧基、苄氧基、苯甲酰基、苯基-C1-4烷基-,或—NR3R4,其中R3为氢或C1-4烷基,R4为氢、C1-4烷基、—CHO、—CO2C1-4烷基或—COC1-4烷基;或两个R2基团形成一个饱和的碳环,可选地被氧中断;X为氢、卤素、氰基、烷基或烷氧基。这些化合物在治疗和预防癫痫等方面有用。