The present invention provides compounds of formula I and pharmaceutically acceptable salts thereof. The formula I compounds inhibit tyrosine kinase activity of JAK3, thereby making them useful for the treatment of inflammatory and autoimmune diseases.
本发明提供了I型化合物及其药学上可接受的盐。式I化合物抑制JAK3的
酪氨酸激酶活性,因此可用于治疗炎症和自身免疫性疾病。