Patent ID: 8906892

Claim:
A compound having Formula I, its enantiomers, diastereoisomers, hydrates, solvates, tautomers or a pharmaceutically acceptable salt thereof, Wherein: R 1 is optionally substituted c 7 -c 11 alkyl, optionally substituted c 2 -c 8 alkenyl, optionally substituted c 2 -c 8 alkynyl optionally substituted c 4 or c 6-8 cycloalkyl, optionally substituted aryl, substituted benzyl, optionally substituted heterocycle, optionally substituted c 3 -c 10 cycloalkenyl, optionally substituted c 5 -c 10 cyclodiene, optionally substituted o(c 3 -c 6 ) alkyl, amino groups, sulfonamide groups, amide groups, except phenyl.