Compounds having the formula
and pharmaceutically acceptable salts thereof wherein a, b, d, A and R¹ to R⁹ are as defined herein. These compounds have potassium channel activating activity and are useful, therefore for example, as cardiovascular agents.
具有以下式子的化合物及其药学上可接受的盐 其中 a、b、d、A 和 R¹ 至 R𠞙 如本文所定义。 这些化合物具有
钾通道激活活性,因此可用作心血管药物等。