Sulfamylbenzoic acids

A compound selected from the group consisting of those of the formula ##STR17## and the amides, lower alkyl esters and salts thereof with pharmacologically acceptable bases, wherein

• U is selected from the group consisting of chloro, fluoro, bromo and di-lower-alkylamino;
• and
• R and R' together with the nitrogen to which they are attached form a heterocyclic ring selected from the group consisting of morpholino, thiomorpholino, piperazinyl, 3-azabicyclo[3,2,2]-nonanyl, tetrahydroisoquinolyl, tetrahydropyridyl and mono- and disubstituted derivatives of said heterocyclic rings;
• said substituents being selected from the group consisting of alkyl, alkyloxy and alkyloxyalkyl of one to four carbon atoms in each alkyl group, hydroxy, chloro, bromo, trifluoromethyl, phenyl, tolyl, benzyl, benzyloxy, chloromethyl and hydroxymethyl.