申请人:The Boots Company PLC
公开号:US05580866A1
公开(公告)日:1996-12-03
Compounds of formula I ##STR1## in which n=0, 1 or 2; R.sub.1, R.sub.2, R.sub.6 and R.sub.7 independently represent H or alkyl (optionally substituted by one or more halo); R.sub.3 and R.sub.4 independently represent H or alkyl or together represent a group of formula .dbd.NR.sub.12 where R.sub.12 represents H, hydroxy, alkyl, phenyl or alkoxy; each alkyl, phenyl and alkoxy being optionally substituted with one or more halo; R.sub.5 represents: (a) H, (b) alkyl, (c) a group of formula --COR.sub.13 in which R.sub.13 is H, alkyl or phenyl, when R.sub.3 and R.sub.4 represent H or alkyl (optionally substituted with one or more halo), or (d) a group of formula --S(O).sub.p R.sub.14 in which p=1 or 2 and R.sub.14 is alkyl or phenyl, when R.sub.3 and R.sub.4 represent H or alkyl (optionally substituted with one or more halo); each alkyl and phenyl optionally substituted with one or more halo; and R.sub.8 to R.sub.11 independently represent H, halo, cyano, nitro, alkyl alkoxy, alkanoyl, carboxy, alkanoyloxy, carbamoyl (optionally substituted with alkyl or sulphamoyl (optionally substituted with alkyl of 1 to 4 carbon atoms); each alkyl, alkoxy, alkanoyl or alkanoyloxy optionally substituted with one or more halo; have utility in the treatment of seizures and/or neurological disorders such as epilepsy and/or as neuroprotective agents to protect against conditions such as stroke.
化合物的结构式I为##STR1##其中n=0、1或2;R.sub.1、R.sub.2、R.sub.6和R.sub.7独立地代表H或烷基(可以选择地被一个或多个卤素取代);R.sub.3和R.sub.4独立地代表H或烷基,或者一起代表一个结构式为.dbd.NR.sub.12的基团,其中R.sub.12代表H、羟基、烷基、苯基或烷氧基;每个烷基、苯基和烷氧基可以选择地被一个或多个卤素取代;R.sub.5代表:(a) H,(b) 烷基,(c) 一个结构式为--COR.sub.13的基团,其中R.sub.13为H、烷基或苯基,当R.sub.3和R.sub.4代表H或烷基(可以选择地被一个或多个卤素取代)时,或者(d) 一个结构式为--S(O).sub.pR.sub.14的基团,其中p=1或2,R.sub.14为烷基或苯基,当R.sub.3和R.sub.4代表H或烷基(可以选择地被一个或多个卤素取代)时;每个烷基和苯基可以选择地被一个或多个卤素取代;而R.sub.8到R.sub.11独立地代表H、卤素、氰基、硝基、烷基烷氧基、烷酰基、羧基、烷酰氧基、氨基(可以选择地被烷基取代)或磺酰胺基(可以选择地被1到4个碳原子的烷基取代);每个烷基、烷氧基、烷酰基或烷酰氧基可以选择地被一个或多个卤素取代;这些化合物在治疗癫痫和/或神经系统疾病如癫痫病的治疗中具有用途,并且作为神经保护剂用于预防中风等疾病。