| 摘要 |
Compounds of the structure <IMAGE> where Ar is optionally substituted carbocyclic aryl, 5- or 6-membered heterocyclic aryl, 10-membered bicyclic heterocyclic aryl containing one or two nitrogen atoms, 9- or 10-membered heterocyclic containing one or two nitrogen atoms and optionally containing a further nitrogen or oxygen atom and one oxo or thioxo substituent, benzo[b]furyl, benzo[b]thienyl, A1 is propynylene, methylene, or a valence bond, X is O, S, SO2, or NR2, Y is selected from alkyl, haloalkyl, alkoxy, halogen, and hydrogen, A2 is selected from <IMAGE> and methylene where Z is OR5 or NHR5 where R5 is hydrogen or alkyl, R1 is hydrogen, alkyl, or OR5, and m and n are integers having a value of 1 or 2 are potent inhibitors of lipoxygenase enzymes and thus inhibit the biosynthesis of leukotrienes. These compounds are useful in the treatment or amelioration of allergic and inflammatory disease states.
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