| 摘要 |
2129642 9413658 PCTABS00032 The subject of the invention is compounds of general formula (I), in which: X represents O or CHR; R1, R2, R3 and R4, which are identical or different, represent a hydrogen atom or a C1-C7 alkyl group, it being possible for R1 to additionally form a bond with R; R5 represents a hydrogen atom, a hydroxyl group or R5, taken together with R7, forms a bond or a $(1,3)$O group; R6 represents a group of formula (a) in which R10 and R11, taken together with the carbon atom to which they are attached, form a nitrogenous heterocyclic group, and their N-oxides and pharmaceutically acceptable salts. These compounds are powerful activators of potassium channels.
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