N-substituted 2-ixindole-1-carboxamides useful as intermediates for producing analgesic and antiinflammatory agents

Abstract From the Canadian patent

Certain 2- oxindole-1-carboxamide compounds substituted of the carboxamide nitrogen of the formula: -- (V), wherein, X and Y are each hydrogen 5-fluoro, 6-fluoro, 5-chloro, 6-chloro 5-trifluoromethyl or 6-trifluoromethyl provided that X, and Y are not both hydrogen; and R2 is alkyl having from 1 to 6 carbons cycloalkyl, having from 3 to 7 carbons benzyl, furyl, thienyl, pyridyl or a, group of the formula (wherein R3 and R4 are each hydrogen, fluoro chloro, alkyl having, 1 to 4 carbons, alkoxy having 1 to 4 carbons or trifluoromethyl)? are useful as intermediates for producing 3-acyl substituted 2oxindole-1-carboxamides which are analgesic and antiinflammatory agents.