Herein we describe the medicinal chemistry efforts that led to the discovery of the clinical-staged Syk inhibitor sovleplenib (41) via a structure–activity relationship investigation and pharmacokinetics (PK) optimization of a pyrido[3,4-b]pyrazine scaffold. Sovleplenib is a potent and selective Syk inhibitor with favorable preclinical PK profiles and robust anti-inflammation efficacy in a preclinical collagen-induced arthritis model. Sovleplenib is now being developed for treating autoimmune diseases such as immune thrombocytopenic purpura and warm antibody hemolytic anemia as well as hematological malignancies.

中文翻译：

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在自身免疫性疾病和癌症的临床开发中发现 Syk 选择性抑制剂 Sovleplenib

在此，我们描述了通过吡啶并[3,4- b ]吡嗪支架的结构-活性关系研究和药代动力学（PK）优化发现临床阶段的Syk抑制剂sovleplenib（41 ）的药物化学工作。 Sovleplenib 是一种有效的选择性 Syk 抑制剂，在临床前胶原诱导的关节炎模型中具有良好的临床前 PK 曲线和强大的抗炎功效。 Sovleplenib 目前正在开发用于治疗自身免疫性疾病，例如免疫性血小板减少性紫癜和温抗体溶血性贫血以及血液恶性肿瘤。