Compounds of structural formula: ##STR1## wherein R' is hydrogen or an aromatic ring system, and Q is a substituted nitrogen or a nitrogen containing heterocycle, X and Y are bridging groups and p is 0 or 1, and E is --S-- or --O--, are Class III antiarrhythmic agents.
结构式为 ##STR1## 的化合物,其中R'为氢或芳香环系统,Q为取代氮或含氮杂环,X和Y为桥接基团,p为0或1,E为--S--或--O--,是第III类
抗心律失常药物。