申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US08338406B2
公开(公告)日:2012-12-25
The present invention provides a novel benzodiazepine compound that blocks the IKur current or the Kv1.5 channel potently and more selectively than other K+ channels. The benzodiazepine compound of the invention is represented by General Formula (1)
wherein R1, R2, R3, and R4 are each independently hydrogen or lower alkyl; R2 and R3 may be linked to form lower alkylene;
A1 is lower alkylene optionally substituted with one or more hydroxy; and
R5 is group represented by
wherein R6 and R7 are each independently hydrogen or organic group;
XA and XB are each independently bond, lower alkylene, etc.
本发明提供了一种新型苯二氮平化合物,它比其他K+通道更具选择性地有效阻断IKur电流或Kv1.5通道。该发明的苯二氮平化合物由通式(1)表示,其中R1、R2、R3和R4各自独立地为氢或低碳基;R2和R3可以连接成低碳烷基;A1是低碳烷基,可以选择性地被一个或多个羟基取代;R5是下述基团:其中R6和R7各自独立地为氢或有机基团;XA和XB各自独立地为键、低碳烷基等。