JH-X-119-01 is a highly efficient and selective covalent inhibitor of interleukin 1 (IL-1) receptor-associated kinase (IRAK) 1 and irreversibly labels IRAK1 at C302, showing moderate cell killing effects with EC50s ranging from 0.59 to 9.72 μM in a panel of WM cells, DLBCL cells, and lymphoma cells.
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