1,3-dicarboxamidooxindoles as analgesic and antiinflammatory agents

A 1,3-dicarboxamidooxindole compount of the formula ##STR308## and a pharmaceutically-acceptable base salt thereof, wherein X is selected from the group consisting of hydrogen, fluoro, chloro, bromo alkyl having one to four carbon atoms, alkythio having one to four carbon atoms, alkoxy having one to four carbons atoms, cycloalkyl having three to six carbon atoms, nitro, trifluoromethyl, acetyl, propionyl, butryl, benzoyl and thenoyl;

• Y is selected from the group consisting of hydrogen, fluoro, chloro, bromo, alkyl having one to four carbon atoms, alkoxy having one to four carbon atoms and alkylthio having one to four carbon atoms;
• X and Y when taken together are selected from the group consisting of 4,5-, 5,6- and 6,7-methylenedioxy;
• R.sub.1 is selected from either (1) heterocyclic and mono-methylated heterocyclic, wherein said heterocyclic is selected from the group consisting of pyridyl, thienyl, furyl, pyrrolyl, thiazolyl, oxazolyl, imidazolyl and isoxazolyl;
• or (2) furylmethyl and thienylmethyl;
• and R.sub.2 is hydrogen.