The present invention is directed to compounds of formula (I): wherein R represents a methyl or an ethyl group X represents N, C-H or C-CH3 when X represents C-H or C-CH3, Y represents N when X represents N, Y represents C-H and physiologically functional derivatives thereof, pharmaceutical compositions comprising the compounds, the use of the compounds for the manufacture of medicaments particularly for the treatment of inflammatory and/or allergic conditions, processes for the preparation of the compounds, and chemical intermediates in the processes for the manufacture of the compounds.