C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/233, 260/304
C07D 405/04 (2006.01) A61K 31/41 (2006.01)
Patent
CA 1260946
Abstract of the Disclosure A chromene derivative having the general formula (I): Image (I) wherein n is 1 to 5 and Image group is attached to 5-position, 6-position, 7-position or 8-position, or salts thereof, a process for preparing the same and antiallergic agents containing the same. The compounds of the present invention inhibit the immunological release of chemical mediators such as SRS-A and histamine from mast cell and have an excellent effect in preventing and treating the various allergic diseases such as allergic asthma, allergic dermatitis, allergic nasitis, hives, allergic enteritis and allergic conjunctivitis, especially allergic asthma.
496960
Awaji Toshikazu
Hiyama Yoshiyuki
Kuriyama Kiyoshi
Nakano Jun
Okuda Toshiaki
Kaken Pharmaceutical Co. Ltd.
Osler Hoskin & Harcourt Llp
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