| abstract |
Compounds of the formula:- <CHEM> and their salts, wherein each R, which is the same, is -NHSO2(C1-C4 alkyl),-NH2 or -NO2; X is 0 or a direct link; R<1> is H, C1-C4 alkyl, C1-C4 alkoxy or halo; and n is 1 or 2, with the proviso that when X is 0, n is 2. The compounds of the formula (A) in which each R is -NHSO2(C1-C4 alkyl) are antiarrhythmic agents. The compounds in which R is -NH2 or -NO2 are synthetic intermediates. |