Patent ID: 8404695

Claim:
A compound according to Formula I wherein: R 1 is —Y—R 1′ ; Y is lower alkylenyl, cycloalkylenyl, heterocycloalkylenyl, or phenylenyl; R 1′ is hydroxy, OC(═O)R 1″ , NHC(═O)R 1″ , C(═O)OR 1″ , NHSO 2 R 1″ , or N(R 1′″ ) 2 , R 1″ is H, lower alkyl, amino, or lower haloalkyl; each R 1′″ is independently H or lower alkyl; R 2 is H or R 2′ ; R 2′ is hydroxy, N(R 2″ ) 2 , NHSO 2 R 2″ or amido; each R 2″ is independently H or lower alkyl; and R 3 is H or methyl.