| abstract |
Compounds of the formula (A), and pharmaceutically acceptable salts and prodrugs thereof, wherein X1, Ar, X, Y1, R1, R2, R3, R5 and n are defined below, which are inhibitors of the production of leukotrienes and/or blockers of leukotriene receptors, methods for preparing said compounds and intermediates useful in the preparation thereof, pharmaceutical com-positions thereof methods of treatment therewith. The compounds of the above formula are useful in the prevention or treat-ment of asthma, arthritis, psoriasis, ulcers, myocardial infarction and related diseases in mammals. |