简介内容:Potent and selective ATM kinase inhibitor (IC50 = nM in an enzyme inhibition assay). Exhibits > 600-fold selectivity for ATM over other kinases. Inhibits ATM kinase in an in vitro cellular assay (IC50 = μM). Potentiates the antitumor effects of the topoisomerase 1 inhibitor irinotecan in tumor bearing, immunocompromised mice. Orally bioavailable.