Abstract: The present invention provides compounds having the structureY-Het-[Q.sub.1 ]-X-[Q.sub.2 ]-Zwhich inhibit the catalytic action of lipoxygenase enzymes, particularly 5-lipoxygenase, and thereby reduce the biosynthesis of leukotrienes B.sub.4, C.sub.4, D.sub.4, and E.sub.4.In the generic formula given above, X is oxygen or sulfur and Het is a heteroaryl group selected from the group consisting of furyl, thienyl, 2-, 3-, and 4-pyridyl, 2- and 3-benzo[b]furyl, 2- and 3-benzo[b]thienyl and thienothienyl.Y is one or two substituents independently selected from hydrogen, hydroxy, halogen, cyano, alkyl, haloalkyl, alkoxy, alkylthio, alkoxyaryl), alkylthioaryl, arylalkoxy, arylalkylthio, aryloxy, arylthio, alkylamido, cycloalkyl, alkanoyl, alkoxycarbonyl, amino, alkylamino, dialkylamino, and the following groups wherein R, at each occurrence, is independently selected from hydrogen and alkyl of from one to six carbon atoms: --CRROR, --NRC(O)R, --NRC(O)OR, and --C(O)NRR.The group Q.sub.