HIDTIL UKENDTE 2-(2,3-DIHYDRO-2-OXO-3-BENZOFURANYL)-EDDIKESYREDERIVATER, FREMGANGSMAADE TIL DERES FREMSTILLING OG FARMACEUTISKE MIDLER INDEHOLDENDE DEM

The invention relates to new 2-(2,3-dihydro-2-oxo-3-benzofuranyl)acetic acid compounds of general formula I: (I) in which: R1 denotes a hydrogen atom, a linear or branched alkyl radical having 1 to 4 carbon atoms or a phenyl radical optionally substituted with a halogen atom or with an alkoxy radical containing 1 to 4 carbon atoms or an alkyl radical having 1 to 4 carbon atoms, R2 denotes a hydrogen or halogen atom, a hydroxyl radical, an alkyl radical having 1 to 4 carbon atoms or an alkoxy radical containing 1 to 4 carbon atoms, R denotes a hydroxyl radical, a linear or branched alkoxy radical having 1 to 4 carbon atoms, a benzyloxy radical or a radical of general formula A: (A) in which: X and Y, which may be identical or different, each denote a linear or branched alkyl radical containing 1 to 5 carbon atoms, a radical of general formula A1 (CHZ-COOH)-, in which Z denotes a hydrogen atom, a linear or branched alkyl radical having 1 to 4 carbon atoms, a hydroxyalkyl radical having 1 to 4 carbon atoms, a 4-imidazolylmethylene radical or a benzyl radical optionally substituted with an alkyl radical having 1 to 4 carbon atoms or with a hydroxyl radical; a radical of general formula A2 (CH2W)-in which W denotes a linear or branched dialkylaminomethylene radical having 3 to 9 carbon atoms, a 2-pyrrolidinyl radical optionally substituted with an alkyl radical having 1 to 4 carbon atoms, a benzyl radical, a 1-isochromanyl radical or a 1-isoquinolyl radical, or form, together with the nitrogen to which they are attached, a 2-carboxy-2-pyrrolidinyl radical, a 4-morpholinyl radical, a piperidino radical optionally substituted with a phenyl radical or with an alkoxyphenyl radical having 7 to 10 carbon atoms, or a 1-piperazinly radical.