Compounds having a selective N-type calcium channel antagonistic activity are provided. Dihydropyridine derivatives represented by the following formula:
 analogs thereof and pharmaceutically acceptable salts thereof have an activity of selectively inhibiting the action of N-type calcium channel, and they are used as therapeutic agents for various diseases relating to N-type calcium channel.
                            提供了具有选择性 N 型
钙通道拮抗活性的化合物。下式所代表的二氢
吡啶衍生物:
 其类似物及其药学上可接受的盐类具有选择性抑制 N 型
钙通道作用的活性,可用作与 N 型
钙通道有关的各种疾病的治疗剂。