Biphenyl-5-alkanoic acid derivatives and use thereof

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 59/64 (2006.01) A61K 31/165 (2006.01) A61K 31/19 (2006.01) C07C 59/72 (2006.01) C07C 59/90 (2006.01) C07C 205/56 (2006.01) C07C 233/54 (2006.01) C07C 235/16 (2006.01) C07C 235/20 (2006.01) C07C 235/34 (2006.01) C07C 271/16 (2006.01) C07C 271/60 (2006.01) C07C 275/42 (2006.01) C07C 307/10 (2006.01) C07C 311/08 (2006.01) C07C 311/21 (2006.01)

Patent

CA 2304713

Compounds represented by general formula (I) or salts thereof, wherein n is an integer of 2 or 3; R represents a straight-chain or branched saturated alkyl group having 4 or 5 carbon atoms, a cyclopentyl group, a cyclohexyl group or the like; Y represents a hydroxyl or amino group; A represents a hydrogen atom, a hydroxyl, methoxy, nitro group or the like; Q represents a hydrogen atom or a hydroxyl or methoxy group. They can be formulated to give pharmaceutical compositions that are effective as prophylactic or therapeutic agents for allergic diseases associated with IgE production inhibitors or IgE antibodies.

L'invention a trait à des composés correspondant à la formule générale (I) ou à leurs sels. Dans cette formule, n représente un nombre entier valant 2 ou 3, R représente un groupe alkyle saturé à chaîne droite ou ramifiée comportant 4 ou 5 atomes de carbone, Y représente un groupe hydroxyle ou amino, A représente un atome d'hydrogène, un groupe hydroxyle, amino, nitro ou analogue, Q représente un atome d'hydrogène ou un groupe hydroxyle ou méthoxy. Il est possible de formuler ces composés pour obtenir des préparations pharmaceutiques utiles en tant qu'agents prophylactiques ou thérapeutiques à l'encontre d'affections allergiques associées à des inhibiteurs de la production d'IgE ou à des anticorps IgE.

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