7-carboxy-flavone derivatives, preparation method and...

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 311/30 (2006.01) A61K 31/352 (2006.01) A61P 29/00 (2006.01) C07D 311/36 (2006.01) C07F 9/655 (2006.01)

Patent

CA 2424993

The invention concerns novel flavone and isoflavone derivatives of formulae (Ia) and (Ib) wherein: X represents a group of formula -COOR, or -PO(OR)¿2?; R represents a hydrogen atom or an alkaline or alkaline-earth metal, or a lower alkyl group; R¿1? represents a hydroxy group, a lower alkoxy group or an acyloxy group; R¿2? and R¿3?, identical or different, represent a hydrogen or halogen atom, or a trifluoromethyl group, a trichloromethyl group, a hydroxy group, an alkoxy group or an acyloxy group comprising 1 to 5 carbon atoms, or R¿2? and R¿3? can combine to form an alkylene dioxy group. The invention is useful for treating rheumatic diseases.

L'invention concerne de nouveaux dérivés de flavones et d isoflavones (voir formules)dans lesquelles X représente un groupe de formule -COOR, ou -PO(OR)2, R représente un atome d'hydrogène ou de métal alcalin ou alcalino-terreux, ou un groupe alkyle inférieur, R1 représente un groupe hydroxy, un groupe alkoxy inférieur ou un groupe acyloxy, R2 et R3, identiques ou différents, représentent un atome d'hydrogène ou d'halogène, ou un groupe trifluoro- méthyle, un groupe trichlorométhyle,un groupe hydroxy, un groupe alkoxy ou un groupe acyloxy comportant 1 à 5 atomes de carbone, ou R2 et R3 peuvent s'associer pour former un groupe alkylène dioxy. Application au traitement des maladies rhumatismales.

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