Compounds of formula (I) are inhibitors of p38 MAP kinase, useful as anti-inflammatory agents in the treatment of, inter alia, diseases of the respiratory tract wherein； R1 is C1-C6 alkyl, C3-C6 cycloalkyl, phenyl which is optionally substituted, 5- or 6 membered monocyclic heteroaryl which is optionally substituted, or a radical of formula (II) wherein n is 1 or 2, and R3 and R4 are independently H or C1-C6 alkyl, or R3 and R4 taken together with the nitrogen to which they are attached form a 6- membered heterocyclic ring optionally containing a further heteroatom selected from N and O； Y is -O- or -S(O)P- wherein p is 0, 1 or 2； A is an optionally substituted divalent arylene radical, or a mono- or bicyclic heteroarylene radical, or a C3-C6 divale nt cycloalkylene radical having 5 or 6 ring atoms, or a piperidinylene radical wherein the ring nitrogen is linked to R2NHC(=O)W-； W is a bond, -NH- or -C(RA)(RB), wherein RA and RB are independently H, methyl, ethyl, amino, hydroxyl or halo； and R2 is a radical as defined in the claims.
