Patent ID: 6897219

Claim:
A piperazine compound represented by the formula any of its enantiomers or any mixture thereof, isotopes thereof or a pharmaceutically acceptable salt thereof; wherein R represents alkyl, C 3 -C 7 cycloalkyl, or C 3 -C 7 cycloalkylalkyl; and R 1 represents a 3-pyridyl group substituted one or more times with substituents selected from the group consisting of alkyl, C 3 -C 7 cycloalkyl, alkenyl, alkynyl, alkoxy, C 3 -C 7 cycloalkoxy, alkenoxy, alkynoxy, halogen, CF 3 , CN, and phenyl, which phenyl may optionally be substituted one or more times with halogen, CF 3 , CN, amino and/or nitro or R represents hydrogen; and R 1 represents a 3-pyridyl group substituted one or more times with substituents selected from the group consisting of alkyl, C 3 -C 7 cycloalkyl, alkenyl, alkynyl, C 3 -C 7 , cycloalkoxy, alkenoxy, alkynoxy, CF 3 , CN, amino, nitro and phenyl, which phenyl may optionally be substituted one or more times with halogen, CF 3 , CN, amino and/or nitro.