Poseltinib (HM71224) 是一种有口服活性，选择性，不可逆的小分子 Bruton 酪氨酸激酶 (BTK) 抑制剂，IC50 为 1.95 nM. Poseltinib 可有效抑制 B 细胞受体 (BCR)，Fc受体 (FcR)， Toll 样受体 (TLR) 介导的信号传导。 Poseltinib 有抗炎活性可用于类风湿性关节炎的研究。 Poseltinib (HM71224) is an orally active, selective, irreversible small molecule Bruton tyrosine kinase (BTK) inhibitor. With an IC50 of 1.95 nM. Poseltinib effectively inhibits the signaling mediated by B cell receptors (BCR), Fc receptors (FcR), and Toll-like receptors (TLR). Poseltinib has anti-inflammatory activity and can be used in the research of rheumatoid arthritis