Patent ID: 6958350

Claim:
A compound of formula (I): wherein: R 1 is phenyl which is optionally substituted by halogen, C 1-4 alkyl, C 1-4 haloalkyl, C 1-4 alkoxy, C 1-4 haloalkoxy, nitro or cyano; R 2 , R 3 and R 4 are, independently, hydrogen or C 1-4 alkyl; R 5 is C 1-6 alkyl, aryl, heteroaryl, aryl(C 1-4 )alkyl, heteroaryl(C 1-4 )alkyl or C 3-8 cycloalkyl; wherein the aryl and heteroaryl moieties of R 5 are optionally substituted by halogen, C 1-6 alkyl (optionally substituted by halogen, C 1-6 alkoxy or phenyl (itself optionally substituted by halogen, C 1-4 alkyl, C 1-4 alkoxy or CF 3 )), OR 6 , S(O) m R 7 , S(O) 2 NR 8 R 9 , NR 10 S(O) 2 R 11 , C(O)R 12 , C(O)NR 13 R 14 , NR 15 C(O)R 16 , NR 17 R 18 , NR 19 C(O)NR 20 R 21 , methylenedioxy, nitro or cyano; X is (CH 2 ) n , where n is 1, 2, 3 or 4; Y is a 2,4-, 2,5- or 3,5-linking 5-membered heteroaryl ring having 2 or 3 heteroatoms independently selected from the group consisting of nitrogen, oxygen and sulphur, wherein Y is optionally substituted by C 1-4 alkyl; R 6 , R 8 , R 9 , R 10 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , R 20 and R 21 are independently, hydrogen or C 1-6 alkyl (optionally substituted by C 1-6 alkoxy (provided no acetal or aminal is formed) or phenyl (itself optionally substituted by halogen, C 1-4 alkyl, C 1-4 alkoxy or CF 3 )); R 7 and R 11 are, independently, C 1-6 alkyl (optionally substituted by C 1-6 alkoxy (provided no thioacetal is formed) or phenyl (itself optionally substituted by halogen, C 1-4 alkyl, —C 1-4 alkoxy or CF 3 )); R 12 is hydrogen, C 1-6 alkyl (optionally substituted by C 1-6 alkoxy (provided no acetal is formed) or phenyl (itself optionally substituted by halogen, C 1-4 alkyl, C 1-4 alkoxy or CF 3 )) or C 1-6 alkoxy (unsubstituted or mono-substituted by C 1-6 alkoxy or phenyl (itself optionally substituted by halogen, C 1-4 alkyl, C 1-4 alkoxy or CF 3 )); or a pharmaceutically acceptable salt thereof.