abstract |
It is an object of the present invention to provide a novel compound having a potassium channel opening activity, particularly a BK channel opening activity, and useful as a pharmaceutical product. A further object of the present invention is to provide a method for synthesizing the compound, an intermediate useful for the synthesis of the compound, and a pharmaceutical composition containing the compound. Formula (I): Wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and X are as defined herein, or a pharmaceutically acceptable Or a solvate thereof. [Selection figure] None |