The present invention relates to a compound according to formula I, wherein R1, R2 and A are as defined herein, which exhibit PDE4 inhibitory activity and may be used in the treatment of inflammatory diseases or autoimmune diseases, in particular inflammatory or proliferative dermal diseases.
本发明涉及一种具有PDE4抑制活性的化合物,其
化学式为I,其中R1,R2和A如本文所定义,可用于治疗炎症性疾病或自身免疫性疾病,特别是炎症性或增生性皮肤疾病。