Patent ID: 8153623

Claim:
A compound of formula (I), or a pharmaceutically acceptable salt thereof: wherein R 1 and R 2 are independently hydrogen, C 1-6 alkyl or C 3-6 cycloalkylC 1-6 alkyl; or such R 1 and R 2 , together with the nitrogen to which they are attached, form an unsubstituted 3-, 4-, 5- or 6-membered saturated ring; R 3 is C 1-6 alkyl, C 1-6 haloalkyl, C 1-3 alkenyl, C 1-3 alkoxyC 1-3 alkyl, C 1-3 haloalkoxyC 1-3 alkyl or (CH 2 ) t OH; or such R 1 and R 3 , together with the interconnecting atoms, form a saturated or unsaturated 5- to 7-membered ring, with the proviso that there is only one heteroatom in the ring, which is Nitrogen; X is carbon or nitrogen; n is 0, 1 or 2, wherein when present each R 4 is independently selected from C 1-3 alkyl, halogen, cyano, haloC 1-3 alkyl, hydroxy, C 1-3 alkoxy and C 1-3 haloalkoxy, q is 1 or 2; t is 1 or 2; either R 5 or R 6 is —O—R 7 or —OCH 2 R 7 , and the other R 5 or R 6 is hydrogen or R 4 ; and wherein R 7 is either a phenyl ring or a 5- or 6-membered aromatic heterocyclic ring, independently containing one or more nitrogen, sulphur or oxygen atoms, wherein either the phenyl ring or the heterocyclic ring is optionally substituted by one or more groups independently selected from C 1-3 alkyl, halogen, cyano, haloC 1-3 alkyl, hydroxy, C 13 alkoxy and C 1-3 haloalkoxy.