Patent ID: 8236987

Claim:
A compound according to the formula: or a pharmaceutically acceptable salt thereof, wherein R is aryl, cycloalkyl, or phenyl (optionally substituted with a hydroxy or a lower aliphatic group); W is naphthyl (optionally substituted with hydroxy, halogen, or lower alkyl); M is a carbonyl, —(C═O)NR 1 —, or —(C═S)NR 1 —; Ar is an aromatic group; X is independently, at each occurrence, hydrogen, hydroxy, alkoxy, or halogen, wherein n=1-2; Y is —O—, —NR 2 —, or —S—; G is a linker group; Z is hydroxy, boronate, sulfate, sulfonate, phosphate, phosphonate, carboxy, amino, dimethylamino, piperidino or a charged group; R 1 is hydrogen, lower alkyl or aralkyl; and R 2 is hydrogen or lower alkyl.