Patent ID: 7208482

Claim:
A compound of formula (I): wherein: R represents hydrogen, halogen, or C 1-6 alkyl; R 1 represents hydrogen, C 1-6 alkyl or together R 1 and R 3 represent a CH 2 moiety; R 2 represents hydrogen, —OC 1-6 alkyl, —O(O)C 1-6 alkyl or hydroxy; R 3 represents hydrogen, hydroxy or together R 3 and R 1 represent a CH 2 moiety; R 4 represents hydrogen or C 1-6 alkyl; R 5 represents hydrogen, C 1-6 alkyl or C 1-6 alkoxycarbonyl; X represents NRxRy or —OC 1-6 alkyl optionally substituted by one or more groups selected from hydroxy, methoxy, halogen, amino and trifluoromethyl; Ra and Rb independently represent hydrogen or C 1-6 alkyl; Rx and Ry independently represent hydrogen, benzyl, C 3-6 cycloalkyl, C 3-6 alkenyl, C 3-6 alkynyl, or C 1-6 alkyl optionally substituted by one or more groups selected from hydroxy, methoxy, halogen, NRaRb and trifluoromethyl, —C 1-6 alkylcycloalkyl, C 1-6 alkylamino and C 1-6 alkylthio and pharmaceutically acceptable derivatives and solvates thereof.