Patent ID: 7262191

Claim:
A compound selected from those of formula (I): wherein: X represents oxygen or sulphur, R 1 represents linear or branched (C 1 -C 6 )alkyl substituted by one or more halogen atoms, R 2 represents hydrogen, halogen or hydroxy, R 3 represents a group R 4 or —Y—R 5 wherein R 4 represents linear or branched (C 1 -C 6 )alkyl optionally substituted by aryl; linear or branched (C 2 -C 6 )alkenyl optionally substituted by aryl; linear or branched (C 1 -C 6 ) polyhaloalkyl; (C 3 -C 7 )cycloalkyl; adamantly; aryl; or heteroaryl, Y represents oxygen, sulphur, or NR, wherein R represents hydrogen or linear or branched (C 1 -C 6 )alkyl, and R 5 may take any of the meanings of R 4 , its enantiomers and diastereoisomers, and addition salts thereof with a pharmaceutically acceptable acid or base.