The invention concerns a compound of the Formula (I), wherein Qa is heteroaryl and is substituted with halogeno; R1 and R2 are each hydrogen; and Qb is phenyl or heteroaryl, and Qb may optionally bear 1 or 2 substituents selected from hydroxy, halogeno 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 diseases or medical condions mediated by cytokines.
这项发明涉及一种式(I)的化合物,其中Qa是杂环芳基,并且被卤代取代;R1和R2分别是
氢;Qb是
苯基或杂环芳基,Qb可以选择性地携带1或2个亲
水基、卤代基和(1-6C)烷基中选取的取代基,或其药用可接受盐;其制备方法,含有它们的药物组合物以及它们在治疗由细胞因子介导的疾病或医学状况中的用途。