A compound of the formula
wherein R1, R2 and R3 are as defined above, which are inhibitors of the enzyme protein tyrosine kinases such as Janus Kinase 3 and as such are useful therapy as immunosuppressive agents for organ transplants, lupus, multiple sclerosis, rheumatoid arthritis, psoriasis, Type I diabetes and complications from diabetes, cancer, asthma, atopic dermatitis, autoimmune thyroid disorders, ulcerative colitis, Crohn's disease, Alzheimer's disease, Leukemia and other autoimmune diseases.
一种化合物的公式如下,其中R1,R2和R3如上所定义,它们是
酪氨酸激酶酶
抑制剂,例如Janus Kinase 3,因此对于器官移植、狼疮、多发性硬化症、类风湿性关节炎、牛皮癣、1型糖尿病和糖尿病并发症、癌症、哮喘、特应性皮炎、自身免疫性甲状腺疾病、溃疡性结肠炎、克隆病、阿尔茨海默病、白血病和其他自身免疫性疾病的治疗是有用的
免疫抑制剂。