Patent ID: 7612059

Claim:
A compound according to formula (I): Wherein: R 1 is an aryl or heteroaryl which is linked to either the α-or β-position to the ring nitrogen; R 2 is hydrogen, halogen or hydroxy; R 3 is hydrogen, halogen, C 1-10 alkyl, C 1-10 heteroalkyl or (R 2 and R 3 ) collectively form a C 4-7 cycloalkyl, provided that when R 3 is halogen, R 2 is not hydroxy; X is S; W is NR 5 or CR 4 R 5 , wherein R 4 is hydrogen, halogen, C 1-10 alkyl, or C 1-10 heteroalkyl and R 5 is C 1-10 alkyl or (R 4 and R 5 ) collectively form a C 4-7 cycloalkyl, provided that when W is NR 5 , R 2 and R 3 are hydrogen, C 1-10 alkyl or heteroalkyl; Y is —COOH, —SH, —N(OH)—CHO or —CO—NH(OH), provided that when Y is —N(OH)CHO or —SH, R 2 is hydrogen and R 3 is hydrogen, C 1-10 alkyl or C 1-0 heteroalkyl; n is 1; or a pharmaceutically acceptable salt thereof.