Patent ID: 7396944

Claim:
The (R)-enantiomers, (S)-enantiomers, or racemates of the compounds of formula I: wherein: (a) R 1 is a (C 1 -C 6 )alkyl, which is optionally substituted one or more times by halogen; (b) X is phenylene or heteroarylene; and (c) Y is selected from the group consisting of: (1) a saturated (C 3 -C 7 )carbocyclic group; (2) a saturated heterocyclic group; (3) a heteroaryl group; and (4) a phenyl group, which is substituted one to three times by alkyl, halogen, —O-alkyl, —S(O) 2 -alkyl, —NH(alkyl) or —N(alkyl) 2 ; wherein the alkyl groups are optionally substituted with one or more halogen atoms; and all pharmaceutically acceptable salts thereof.