Patent ID: 7816386

Claim:
A compound of the following formula I: wherein: n is 0; A is a monovalent group and is selected from the group consisting of: NH—OG and, the group where G and G′ are H, Y is a group selected among HC═CH, CH 2 —CH 2 and C≡C; R is the group: where X is either O, NH; or R is the group: Z is H; R 1 is H; or: R and R 1 , taken together with the aromatic group, form a polycyclic group having the following formula: R 2 is selected from the group consisting of: H; (C 6 -C 12 ) aryl or (C 6 -C 12 ) aryl substituted with nitro, halogen, (C 1 -C 4 ) alkoxycarbonyl; (C 1 -C 4 ) alkyl, (C 2 -C 4 ) alkenyl; (C 6 -C 12 ) aryl-(CH 2 ) n″ , where aryl is substituted with nitro halogen, (C 1 -C 4 ) alkoxycarbonyl, where n″=0-3; (C 6 -C 12 ) aryl-CO, where aryl is substituted with halogen (C 1 -C 4 ); and (C 6 ) heterocyclyl-(C 1 -C 3 ) alkylene where at least one of the CH 2 of the heterocycle is substituted by O; R 3 is H; R 4 is H; R 5 is H; its tautomers, geometrical isomers, optically active forms as enantiomers, diastereomers and racemate forms, as well as its pharmaceutically acceptable salts.