Novel heterocyclic dihydropyrimidine compounds useful as inhibitors of potassium channel function (especially inhibitors of the K
v
1 subfamily of voltage gated K
+
channels, especially inhibitors K
v
1.5 which has been linked to the ultra-rapidly activating delayed rectifier, which have the structure
stereoisomers including enantiomers thereof and diastereomers thereof, or a pharmaceutically acceptable salt thereof, wherein
Q is alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, cycloheteroalkyl, substituted cycloheteroalkyl or
which is aryl, substituted aryl, heteroaryl or substituted heteroaryl;
R
3
is
wherein R
1
, R
2
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
and R
10
are defined herein.
Methods of using such compounds in the prevention and treatment of arrhythmia and I
Kur
-associated conditions, and pharmaceutical compositions containing such compounds are also provided.
                            新型杂环二氢
嘧啶化合物,可用作
钾通道功能
抑制剂(尤其是Kv1亚家族电压门控K+通道的
抑制剂,尤其是与超快速激活延迟整流器相关的Kv1.5的
抑制剂),其结构包括立体异构体,包括其对映异构体和顺反异构体,或其药学上可接受的盐,其中Q为烷基,取代烷基,环烷基,取代环烷基,环杂烷基,取代环杂烷基或芳基,取代芳基,杂芳基或取代杂芳基;R3为其中R1、R2、R4、R5、R6、R7、R8、R9和R10在此定义。还提供了使用这种化合物预防和治疗心律失常和IKur相关疾病的方法以及含有这种化合物的制药组合物。