atm inhibitor1

ATM Inhibitor-1 is a highly potent, selective, and orally active ATM inhibitor (IC50: 0.7 nM) with anti-tumor activity. It exhibits weak activity against mTOR (IC50, 21 μM), DNAPK (IC50, 2.8 μM), PI3Kα (IC50, 3.8 μM), PI3Kβ (IC50, 10.3 μM), PI3Kγ (IC50, 3 μM), and PI3Kδ (IC50, 0.73 μM).

ATMInhibitor-11 (Compound 1) is an inhibitor of ATM with an IC50 of 0.32 nM. It also inhibits KAP1 phosphorylation with an IC50 of 0.97 nM. This compound exhibits high exposure in the brain, heart, and plasma of ICR mice. Furthermore, ATMInhibitor-11 demonstrates antitumor activity in the NCI-H441 xenograft mouse model.

AZ 5704 (compound 74) is a selective and orally active ATM inhibitor (IC50 = 0.6 nM), which can enhance the anti-tumor activity of irinotecan in the SW620 xenograft model.