Marrer S
Pharm Acta Helv. 1989;64(12):338-44.
The molecular properties of quinidine, EO 122, and lidocaine were investigated using theoretical methods (Molecular Modeling). The binding pattern of the molecules were investigated by calculating interaction energies with a negative charged fragment (receptor model). Based on these calculations a model for the differentiation of class Ia and class Ib antiarrhythmic drugs could be deduced. The results explain data which were formulated in the modulated receptor hypothesis. In this way the molecular basis for the preferred affinity of quinidine to the open state of the sodium channel as well as the equal affinity of lidocaine to the open and inactivated state of the channel were defined.
使用理论方法（分子建模）研究了奎尼丁、EO 122和利多卡因的分子特性。通过计算与带负电荷片段（受体模型）的相互作用能来研究分子的结合模式。基于这些计算，可以推导出区分I a类和I b类抗心律失常药物的模型。结果解释了在调制受体假说中阐述的数据。通过这种方式，确定了奎尼丁对钠通道开放状态的优先亲和力以及利多卡因对通道开放和失活状态的同等亲和力的分子基础。
