申请人:Chugai Seiyaku Kabushiki Kaisha
公开号:US05874446A1
公开(公告)日:1999-02-23
Novel benzopyran and benzoxazine derivatives represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 represent a lower haloalkyl group, R.sub.3 represents a hydrogen atom, etc., R.sub.4 represents a heterocyclic group or A--O-- wherein A represents a cyclic structure, etc., R.sub.5 and R.sub.6 represent a lower haloalkyl, X represents .dbd.N--, N.fwdarw.O, etc, are disclosed. These compounds exhibit K.sup.+ channel opening activating and can be widely used as an anti-asthma drug, an anti-epilepsy drug, etc.
新型苯并吡喃和苯并噁嗪衍生物的一般公式表示为:##STR1##其中R.sub.1和R.sub.2代表较低的卤代烷基,R.sub.3代表氢原子,等等,R.sub.4代表杂环基或A--O--,其中A代表环状结构,等等,R.sub.5和R.sub.6代表较低的卤代烷基,X代表.dbd.N--,N.fwdarw.O等。这些化合物表现出K.sup.+通道开放激活作用,可广泛用作抗哮喘药物、抗癫痫药物等。