Patent ID: 8440644

Claim:
A compound having Formula I, its enantiomers, diastereoisomers, tautomers or a pharmaceutically acceptable salt thereof, wherein: R 1 is N or C—R 10 ; R 2 is aromatic heterocycle, non-aromatic heterocycle cycloalkenyl; R 3 is O; R 4 is H, R 4 is H or aryl; R 5 is H, halogen, or C 1-3 alkyl; R 6 is H, C 1-3 alkyl or halogen; R 7 is H or C 1-6 alkyl; R 8 is H; R 9 is —OPO 3 H 2 , —P(O)(OH) 2 , —S(O) 2 OH, —P(O)MeOH or —OR15; R 10 is H, or C 1-6 alkyl; R 15 is H or C 1-3 alkyl; L is CHR 16 ; a is 0, 1, 2, 3, 4 or 5; b is 0, 1, 2, 3, 4 or 5; c is 0 or 1; d is 1, 2 or 3; R 16 is H, C 1-3 alkyl, —OC 1-3 alkyl, halogen, hydroxyl or amino; and with the proviso: when R 9 is OR 15 then d is not 1.