Patent ID: 6844466

Claim:
A compound according to structural formula (I): or, a salt, solvate or hydrate thereof wherein: n is an integer from 0 to 2; X is S, O or NR 3 R 4 ; R 3 and R 4 are independently hydrogen, alkyl, aryl, arylalkyl, cycloalkyl or cycloalkyl-alkyl, or together with the nitrogen atom to which they are attached form a heterocyclyl ring; Y is —OR 5 , —SR 5 or —NR 6 R 7 ; R 5 is hydrogen, alkyl, aryl, arylalkyl, cycloalkyl or cycloalkyl-alkyl; R 6 and R 7 are independently hydrogen, alkyl, aryl, arylalkyl, cycloalkyl or cycloalkyl-alkyl or together with the nitrogen atom to which they are attached form a heterocyclyl ring; R 1 is (C 3 -C 8 ) alkyl; R 2 is hydrogen, alkyl, hydroxy or oxo; and R 9 is hydrogen, alkyl, haloalkyl, halo, cyano, nitro or alkoxy.