| 摘要 |
There are disclosed compounds of the formula <IMAGE> wherein X is <IMAGE> W is <IMAGE> Y is <IMAGE> +TR <IMAGE> n is 0-8; R1 is hydrogen, loweralkyl, loweralkoxy, lower alkanoyl, halo, trifluoromethyl, cyano or nitro; R2 is hydrogen or loweralkyl; and the pharmaceutically acceptable salts thereof, and their use in the treatment of leukotriene-mediated naso-bronchial obstructive airpassageway conditions, such as allergic rhinitis, allergic bronchial asthma and the like, and in antithrombotic therapy.
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