| abstract |
The invention relates to a compound of Formula I, wherein Qa is heteroaryl and is substituted with halo; R1 and R2 are each hydrogen; and Qb is phenyl or heteroaryl, and Qb may optionally have 1 or 2 substituents selected. from: hydroxy, halo and (1-6C) alkyl, or a pharmaceutically acceptable salt thereof; processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of cytokine-mediated diseases or medical conditions. |