The invention relates to new therapeutically useful pyridazin-3(2H)-one derivatives, to processes for their preparation and to pharmaceutical compositions containing them. These compounds are potent and selective inhibitors of phosphodiesterase 4 (PDE4) and are thus useful in the treatment, prevention and suppression of related pathological conditions, diseases and disorders, in particular asthma, chronic obstructive pulmonary disease, rheumatoid arthritis, topic dermatitis, psoriasis or irritable bowel disease.
本发明涉及新的治疗有用的
吡啶并嗪-3(2H)-酮衍
生物,以及它们的制备过程和含有它们的药物组合物。这些化合物是
磷酸二酯酶4(PDE4)的有效和选择性
抑制剂,因此可用于治疗、预防和抑制相关的病理条件、疾病和障碍,特别是哮喘、慢性阻塞性肺疾病、类风湿性关节炎、局部皮炎、牛皮癣或肠易激综合征。