Patent ID: 8076329

Claim:
A compound of formula (I): wherein R1 and R2 taken together with the nitrogen atom to which they are attached, form a mono or bicyclic saturated nitrogen-containing ring of formula: with m=4 or 5, each Rb is independently identical or different, and Rb is a hydrogen or a C 1 -C 4 alkyl, or 2 Rb form together a bond so as to form a bicyclic ring, chosen from: R is chosen from: a) a pyridyl group, or a cycloalkyl, each optionally substituted with one or more of Halogen atom, C1-C4 alkyl, O—C1-C4 alkyl, OH, or NR3R4; and where the N atom within the pyridyl ring may be in the form of N-Oxide (N + —O − ), or bicyclic aryl substituted with one or more of Halogen atom, C1-C4 alkyl, O—C1-C4 alkyl, OH, NR3R4, —C 2 -C 4 alkenyl or —C2-C4 alkynyl, where alkyl, alkenyl or alkynyl is optionally substituted with a heterocycle, or NR3R4; wherein R3, R4 are independently hydrogen, a straight or branched C 1 -C 4 alkyl or an aryl group or taken together with the nitrogen atom to which they are attached form a saturated or partially unsaturated monocyclic or bicyclic heterocycle or heteroaryl optionally comprising one or more further heteroatoms and/or optionally substituted with one or more of Halogen atom, C1-C4 alkyl, O—C1-C4 alkyl or OH; or their pharmaceutically acceptable salts, or their optical isomers, racemates, diastereomers or enantiomers.