Compounds of the formula:
wherein R¹ and R² are independently fluorine, chlorine or bromine atom, and R³ is a C₄-C₇ alkyl having at least a branch at the C₁ position, exhibit K⁺ channel opening activity and are useful as hypotensive agents and coronary vasodilators.
式中的化合物:
其中 R¹ 和 R² 独立地是
氟、
氯或
溴原子,R³ 是 C₄-C₇ 烷基,在 C₁ 位至少有一个分支,具有 K⁺ 通道开放活性,可用作降压药和冠状动脉血管扩张剂。