#$%^&*AU2020204241A120200716.pdf#####Abstract Compounds of the formula (1), in which R1, R3, Heti and HET have the meanings given in Claim 1, are ATM kinase inhibitors and can be employed, inter alia, for the treatment of cancer Het1 R1 HET N N R3 12470745_1 (GHMatter) P106925.AU.1