Patent ID: 8471027

Claim:
A compound of formula I wherein: R is phenyl, or pyridonyl, optionally substituted with one or more R′; R′ is halo or methoxy; X is CH or N; X 1 is H or C(═O)OCH 3 or 2-oxazole; Y is CH or N; Y 1 is OH, OC(═O)Y 1′ , N(Y 1′ ) 2 , NHS(═O) 2 Y 1′ , NHC(═O)Y 1′ , NHC(═O)C(CH 3 ) 2 OH, NHCH 2 C(CH 3 ) 2 OH, or NHC(═O)C(CH 3 ) 2 C(═O)Y 1′ ; each Y 1′ is independently H, lower alkyl, lower hydroxyalkyl, or cycloalkyl; Y 2 is H, halo, or haloalkyl; or a pharmaceutically acceptable salt thereof.