| abstract |
A compound having the formula ##STR1## wherein X is O, S n R 4 , R 5 , R 6 and R 7 independently of each other are hydrogen, halogen, or CF 3 ; n R' is hydrogen or NO 2 ; and n further a method of treating a disorder or disease of a living animal body, including a human, which is responsive to opening of potassium channels, which comprises administering to a living animal body, including a human, in need thereof an effective amount of a compound as above. |