(Rac)-Ibrutinib alkyne

(Rac)-Ibrutinib alkyne (Compound 8) is a Btk inhibitor with an IC50 of 0.72 nM. (Rac)-Ibrutinib alkyne can effectively inhibit functions related to the B-cell receptor signaling pathway, with an IC50 of 9 nM for inhibiting Ca flux in Ramos cells. (Rac)-Ibrutinib alkyne can be used in the research of diseases such as rheumatoid arthritis.