Patent ID: 8604028

Claim:
A compound of formula (I) wherein R 1 is hydrogen, (C 1 -C 6 )-alkyl, (C 1 -C 6 )-alkylcarbonyl, benzyl or benzoyl, wherein the phenyl part of said benzyl and benzoyl groups, respectively, may be substituted with one or two residues independently selected from the group consisting of fluoro, chloro, bromo, cyano, methyl, difluoromethyl, trifluoromethyl, ethyl, methoxy, difluoromethoxy and trifluoromethoxy, R 2 is cyano, R 3 is (C 1 -C 4 )-alkyl optionally substituted with up to three fluoro atoms, or R 2 and R 3 are joined and, taken together with the carbon atoms to which they are attached, form a fused ring of the formula wherein n is an integer of 1 or 2, A is —CH 2 —, —O— or —NR 6 —, wherein R 6 is hydrogen or (C 1 -C 4 )-alkyl, E is —O—, —NH— or —NCH 3 —, and R 7 is hydrogen or methyl, R 4 is hydrogen, (C 1 -C 4 )-alkyl or cyclopropyl, R 5 is (C 1 -C 6 )-alkyl optionally substituted with up to three fluoro atoms, or is phenyl or pyridyl each of which may be substituted with one or two residues independently selected from the group consisting of fluoro, chloro, bromo, cyano, methyl, difluoromethyl, trifluoromethyl, ethyl, methoxy, difluoromethoxy and trifluoro-methoxy, or R 4 and R 5 are joined and, taken together with the nitrogen and the carbon atom to which they are attached, form a fused ring of the formula wherein G is —CH 2 — or —O—, or a pharmaceutically acceptable salt, hydrate and/or solvate thereof.