Patent ID: 8722712

Claim:
A compound represented by Formula I, its individual enantiomers, individual diastereoisomers, individual tautomers or a pharmaceutically acceptable salt thereof wherein: R 1 is substituted or unsubstituted C 6-10 aryl, substituted or unsubstituted heterocycle, substituted or unsubstituted C 5-8 cycloalkyl, substituted or unsubstituted C 5-8 cycloalkenyl; R 2 is hydrogen, —OC 1-3 alkyl or substituted or unsubstituted C 1-3 alkyl; R 3 is hydrogen, halogen, substituted or unsubstituted C 1-3 alkyl, C(O)R 10 or hydroxyl; R 4 is hydrogen, halogen, substituted or unsubstituted C 1-3 alkyl, C(O)R 10 or hydroxyl; R 5 is hydrogen, halogen, substituted or unsubstituted C 1-3 alkyl, C(O)R 10 or hydroxyl or substituted or unsubstituted heterocycle; R 6 is hydrogen, halogen, substituted or unsubstituted C 1-3 alkyl, C(O)R 10 or hydroxyl or substituted or unsubstituted heterocycle; R 7 is hydrogen, —OC 1-3 alkyl or substituted or unsubstituted C 1-3 alkyl; R 8 is H or C 1-3 alkyl; R 9 is PO 3 H 2 , —P(O)MeOH or —P(O)(H)OH; R 10 is H or C 1-3 alkyl; a is 2 or 3; b is 1, 2 or 3; c is 1, 2, 3, 4, 5 or 6.