Related are a JAK kinase inhibitor, a preparation method for same, and applications thereof in the field of medicine, related to the field of medicinal chemistry. Provided is a novel small molecule JAK inhibitor, which has the structure as represented by formula (II). The compound provides improved efficacy and safeness in preventing or treating a JAK-related indication.
涉及一种JAK激酶抑制剂、其制备方法及其在医药领域的应用,与药物化学领域相关。本发明提供了一种新型小分子 JAK 抑制剂,其结构如式 (II) 所示。该化合物在预防或治疗 JAK 相关适应症方面具有更好的疗效和安全性。