| abstract |
There are provided novel compounds of formula (I) wherein R1, R4, R5, G1, G2, X, L, Y1, Y2 and n are as defined in the Specification and optical isomers, racemates and tautomers thereof, and pharmaceutically acceptable salts thereof; together with processes for their preparation, compositions containing them and their use in therapy. The compounds are inhibitors of neutrophil elastase. |