This invention provides compounds of Formula I having the structure wherein: R is hydrogen or alkyl of 1-6 carbon atoms; A is R1, R2, R3 are each, independently, hydrogen, alkoxy of 1-6 carbon atoms, thioalkyl of 1-6 carbon atoms, trifluoromethyl, R4 is hydrogen, alkyl of 1-6 carbon atoms, halogen, or alkoxy of 1-6 carbon atoms; R5 is phenyl, naphthyl, thienyl, furyl, wherein R5 may be optionally mono-, di-, or tri-substituted with a sustituent selected from the group consisting of alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, trifluoromethyl, halogen, alkoxycarbonyl of 2-7 carbon atoms, alkylamino of 1-6 carbon atoms, and dialkylamino in which each of the alkyl groups is of 1-6 carbon atoms, nitro, cyano, —CO2H, alkylcarbonyloxy of 2-7 carbon atoms, and alkylcarbonyl of 2-7 carbon atoms; m=1-4; n=1-4; and X=O, S, or a pharmaceutically acceptable salt thereof, which are useful in treating metabolic disorders related to insulin resistance or hyperglycemia.