141763-56-6Relevant articles and documents
ARYL DERIVATIVES
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, (2008/06/13)
The invention concerns an aryl derivative of the formula I, wherein Ar1 is optionally substituted phenyl, naphthyl or a heterocyclic moiety, and X1 is oxy, thio, sulphinyl, sulphonyl, difluoromethylene, imino, (1-4C)alkylimino or optionally substituted (1-4C) alkylene, or X1 is a group of the formula wherein X4 is oxy, thio, sulphinyl, sulphonyl or carbonyl and each R is hydrogen, methyl or ethyl each of Ar2 and Ar3 is optionally substituted phenylene X2 is oxy, thio, sulphinyl or sulphonyl R1 is (1-4C)alkyl and R2 and R3 together form a group of the formula A1 X3 A2 which together with the carbon atom to which A1 and A2 are attached define a ring having 5 to 7 ring atoms, wherein each of A1 and A2 is (1-3C) alkylene and X3 is oxy, thio, sulphinyl or sulphonyl which compounds are inhibitors of 5-lipoxygenase and are useful in the treatment of inflammatory or allergic disease