| abstract |
The invention provides compounds of formula n n n n n n n n n n wherein R 1 , R 2 , R 3 , A and m are as defined in the specification and optical isomers, racemates and tautomers thereof, and pharmaceutically acceptable salts thereof; together with processes for their preparation, pharmaceutical compositions containing them and their use in therapy. The compounds are inhibitors of microsomal prostaglandin E synthase-1. |