Patent ID: 7105551

Claim:
A compound of formula (I) or a pharmaceutically acceptable salt, solvate, or hydrolysable ester thereof, wherein: R 1 and R 2 are independently H or C 1-3 alkyl, or R 1 and R 2 which are bonded to the same carbon atom may together with the carbon atom to which they are bonded form a 3-6 membered cycloalkyl ring, and at least one of R 1 and R 2 must be other than H; X 2 is O, or S; R 3 , R 4 , and R 5 are independently H, C 1-3 alkyl, OCH 3 , CF 3 , allyl, or halogen; one of Y and Z is N, the other is S or O; R 6 and R 7 are independently H, phenyl, benzyl, fluorine OH, C 1-6 alkyl, allyl, R 6 and R 7 may, together with the carbon atom to which they are bonded, represent a carbonyl group; R 9 is H, CF 3 or CH 3 ; Each R 8 is independently CF 3 , C 1-3 alkyl, OCH 3 or halogen; y is 1 or 2.