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缺血性心脏病是当今居民丧失劳动力和高死亡率的最主要原因之一。因此，寻找和研究新的抗心绞痛药和抗心律失常药具有重大意义。已知的抗心绞痛药如民肾上腺素受体阻滞剂、钙括抗剂降低心脏对氧的需求在很大程度上与心动徐缓有关；但可明显降低动脉压井抑制心肌的收缩机能，当
Ischemic heart disease is one of the leading causes of loss of workforce and high morbidity among residents today. Therefore, looking for and studying new anti-anginal drugs and anti-arrhythmic drugs is of great significance. Known antianginal drugs such as adrenergic blockers and calcium antagonists that reduce the cardiac oxygen demand are largely associated with bradycardia; however, arterial surge can significantly reduce the myocardial contractile function when