Patent ID: 7101885

Claim:
A compound of the formula I wherein Ar is selected from phenyl or pyridyl; wherein phenyl may be optionally substituted with one substituent selected from halogen, trifluoromethyl, pyridyl, oxazoyl, pyrazolyl, isoxazolyl, 2-oxo-piperidinyl, 2-oxo-oxazolidin-3-yl, and 2-oxo-pyrrolidin-1-yl; Y is hydrogen; wherein R 1 is C 1 –C 8 alkyl, or C 1 –C 8 alkoxy; G is (C 1 –C 6 )alkyl, wherein said alkyl is straight-chained, branched or cyclic, and said (C 1 –C 6 ) alkyl is optionally substituted with OH, or OR′, wherein R′ is straight-chained, branched or cyclic (C 1 –C 6 )alkyl; a is 1; Z is independently carbon or nitrogen; W is carbon; n is 1, 2 or 3; and the pharmaceutically acceptable salts thereof.