| abstract |
Compounds of structure <IMAGE> where W is selected from <IMAGE> <IMAGE> where Q is oxygen or sulfur, R5 and R6 are independently selected from hydrogen and alkyl, or R5 and R6, together with the nitrogen atoms to which they are attached, define a radical of formula <IMAGE> L1 and L2 are independently selected from a valence bond, alkylene, propenylene, and propynylene, R1, R2, R3, and R4 are independently selected from alkyl, alkoxy, haloalkyl, halogen, cyano, amino, alkoxycarbonyl, and dialkylaminocarbonyl, Y is oxygen, >NR9 where R9 is hydrogen or alkyl, or <IMAGE> where n=0, 1, or 2, and A is selected from <IMAGE> inhibit the biosynthesis of leukotrienes. These compounds are useful in the treatment or amelioration of allergic and inflammatory disease states. |