BENZOPYRAN DERIVATIVES HAVING LEUKOTRIENE-ANTAGONISTIC ACTION

摘要

The present invention relates to novel benzopyran derivatives of formula (I), wherein A is an oxygen or sulphur atom or a methylene group; B and C are: a) when B is a benzofused heterocycle (a) wherein U is an O, S or N atom, Z-Y are two carbon atoms linked by a double or single bond and T is a single bond, a methylene or carbonyl group, C can be a -CONR7-, CSNR7-, -SO2NR7-, -CH2O-, -CH=CH- group; b) when B is a phenyl group (b), C can be a -SO2NR7-, -CH2O-, -CH=CH- group; D is a 5-tetrazolyl or -COOR8 group, wherein R8 is hydrogen, a (C1-C4)-alkyl or phenylalkyl group; and m and n are integers between 0 and 4. Said compounds show a leukotriene-antagonistic activity, and they are valuable as anti-inflammatory and antiallergenic medicaments or in the treatment of cardiovascular diseases.