Compounds of the Formulae (I) and (II):
1
wherein R
1
, R
2
, R
3
, X, Y and Z are as defined in the specification which compounds are useful in the treatment of disorders associated with smooth muscle contraction via potassium channel modulation.
化合物的公式(I)和(II):其中R1,R2,R3,X,Y和Z的定义如说明书中所述,这些化合物通过调节
钾通道在治疗与平滑肌收缩有关的疾病中有用。