| abstract |
Novel aminosulfonylbenzoic acid derivatives of the formula (I):n wherein X and Y, independently of each other, denote chlorine atom, bromine atom, hydrogen atom, amino group or nitro group, R, denotes hydrogen atom or a lower alkyl group, R 2 denotes hydrogen atom, amino group, a lower alkyl group, a hydroxyalkyl group, a lower alkoxy group, aryl group, guanyl group, guanidino group, ureid group, oxamoylamino group, or unsubstituted or halogen-substituted pyrldazinoamino group, or R, and R 2 together with a nitrogen atom in the formula (I) may form a saturated heterocyclic group of 4 or 5 carbon atoms in which the carbon atoms may be replaced by an oxygen atom or unsubstituted or lower alkyl-substituted nitrogen atom, and R 3 denotes hydrogen atom, alkyl group, alkenyl group, cycloalkyl group, or benzyl group. |