abstract |
There is provided a compound of formula (I), wherein X, R 1 , R 2 , R 3 , R 4 , R 5 and R 6 have meanings given in the description, and pharmaceutically-acceptable salts thereof, which compounds are useful in the treatment of diseases in which inhibition of the activity of microsomal prostaglandin E synthase-1 is desired and/or required, and particularly in the treatment of inflammation. |