Patent ID: 7547696

Claim:
A compound of formula (I), wherein R 1 is hydrogen atom or a straight or branched C 1-4 alkyl; R 2 is hydrogen atom or a straight or branched C 1-4 alkyl; R 3 is hydrogen atom, straight or branched C 1-4 alkyl, or C 3-6 cycloalkyl, phenyl, thienyl, or furyl, each of which is optionally substituted with one or more straight or branched C 1-4 alkyl, straight or branched C 1-4 alkoxy, or halogen atom, or six- or five-membered heteroaromatic ring containing one, two or three nitrogen atoms, or five-membered heteroaromatic ring containing one nitrogen atom and one oxygen atom, or one nitrogen atom and one sulphur atom, wherein the heteroaromatic ring is optionally substituted with one or more straight or branched C 1-4 alkyl, straight or branched C 1-4 alkoxy, or halogen atom; R 4 and R 5 taken together with the nitrogen atom to which they are attached form a group of formula a.) R 6 is hydrogen atom, straight or branched C 1-4 alkyl, phenyl, benzyl, thienyl, or furyl, each of which is optionally substituted with methylenedioxy, or one or more straight or branched C 1-4 alkyl, straight or branched C 1-4 alkoxy, hydroxy, trifluoromethyl, cyano or halogen atom, or six- or five-membered heteroaromatic ring containing one, two or three nitrogen atoms, or one nitrogen atom and one oxygen atom, or one nitrogen atom and one sulphur atom, wherein the heteroaromatic ring is optionally substituted with one or more straight or branched C 1-4 alkyl, straight or branched C 1-4 alkoxy or halogen atom; R 7 and R 8 independently are hydrogen atom, straight or branched C 1-4 alkyl or C 3-6 cycloalkyl; X is —CH 2 —, —NH—, —NR 9 —, sulphur atom, oxygen atom, sulpho or sulphoxy; R 9 is straight or branched C 1-4 alkyl or C 3-6 cycloalkyl; Z is—O—; n is zero, 1 or 2; m is 1, 2, or 3; o is 1, 2, or 3; p is zero or 1; and r is zero or 1, or a salt, or tautomer, desmotrop or optically active isomer thereof, or a salt of the tautomer, desmotrop or optically active isomer.