申请人:John Wyeth & Brother
公开号:US05681839A1
公开(公告)日:1997-10-28
This invention concerns a compound of generic formula ##STR1## or a pharmaceutically acceptable salt thereof, where the dotted lines represent optional bonds, R.sup.3 is an optionally substituted C.sub.6 -C.sub.10 aryl or heteroaryl group; R.sup.4 represents hydrogen, or a group of formula --CR.sup.a R.sup.b R.sup.c where R.sup.a, R.sup.b and R.sup.c are independently selected from hydrogen, C.sub.1 -C.sub.6 alkyl C.sub.6 -C.sub.10 aryl, heteroaryl, C.sub.1 -C.sub.6 alkyl substituted by optionally substituted C.sub.6 -C.sub.10 aryl or heteroaryl; R' represents one or more optional substituents the same or different, selected from halogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.7 alkoxycarbonyl, C.sub.1 -C.sub.6 hydroxyalkyl, CN, aminocarbonyl, C.sub.2 -C.sub.7 alkanoyloxy(C.sub.1 -C.sub.6)alkyl, carboxy, C.sub.2 -C.sub.7 alkanoxylamino, C.sub.6 -C.sub.10 or heteroaryl or an (C.sub.6 -C.sub.10 aryl)alkyl or a heteroaryl alkyl radical; R" represents one or more optional mono- or di- valent substituents in the 5, 7 or 8 positions selected from C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.7 alkanoyloxy, hydroxy, amino, C.sub.2 -C.sub.7 alkanoylamino, C.sub.1 -C.sub.6 alkylamino, C.sub.1 -C.sub.6 hydroxyalkyl, and R" can also represent hydroxy in the 6 position when the optional bond is absent; oxo and methylene; which compounds have pharmaceutical uses conferred by their ability to block voltage gated potassium channels.
这项发明涉及一种通用结构式##STR1##的化合物或其药学上可接受的盐,其中虚线代表可选键,R.sup.3是一个可选择取代的C.sub.6 -C.sub.10芳基或杂环芳基;R.sup.4代表氢,或者一个式--CR.sup.a R.sup.b R.sup.c的基团,其中R.sup.a、R.sup.b和R.sup.c分别独立地选自氢、C.sub.1 -C.sub.6烷基、C.sub.6 -C.sub.10芳基、杂环芳基、C.sub.1 -C.sub.6烷基取代的可选择取代的C.sub.6 -C.sub.10芳基或杂环芳基;R'代表一个或多个可选取代基,相同或不同,选自卤素、C.sub.1 -C.sub.6烷基、C.sub.2 -C.sub.7烷氧羰基、C.sub.1 -C.sub.6羟基烷基、CN、氨基羰基、C.sub.2 -C.sub.7烷酰氧基(C.sub.1 -C.sub.6)烷基、羧基、C.sub.2 -C.sub.7烷氧基氨基、C.sub.6 -C.sub.10或杂环芳基或一个(C.sub.6 -C.sub.10芳基)烷基或一个杂环芳基烷基基团;R"代表在5、7或8位置选自C.sub.1 -C.sub.6烷基、C.sub.2 -C.sub.7烷酰氧基、羟基、氨基、C.sub.2 -C.sub.7烷酰氨基、C.sub.1 -C.sub.6烷基氨基、C.sub.1 -C.sub.6羟基烷基的一个或多个可选的单价或二价取代基,当可选键不存在时,R"还可以代表6位置的羟基;氧代和亚甲基;这些化合物通过其阻断电压门控钾通道的能力具有药用价值。