| abstract |
(57) [Summary] Structural formula (I): Wherein X represents any suitable counter anion, R 1 and R 2 independently represent hydrogen, C 1-6 alkoxy or nitro, and R 3 , R 4 , R 5 and R 6 are each Independently represents hydrogen, hydroxy, halo, C 1-6 alkyl, C 2-6 alkenyl or C 1-6 alkoxy, wherein R 7 , R 8 , R 9 and R 10 are each independently Hydrogen, hydroxy, halo, C 1-6 alkyl, C 2-6 alkenyl or C 1-6 alkoxy) and a process for producing the compound. The compounds represented by Structural Formula (I) are useful for treating or preventing a free radical related disease or condition in a mammal. |