PARP1-IN-9 (Compound 5c) is a potent PARP1 inhibitor, displaying an IC 50 of 30.51 nM. With its ability to induce cell apoptosis and exhibit anticancer activity, PARP1-IN-9 surpasses Olaparib in terms of efficacy [1].
iRucaparib-AP6, a non-trapping PARP1 degrader, blocks both the catalytic activity and scaffolding effects of PARP1. iRucaparib-AP6 is a highly efficient and specific PARP1 degrader based on Rucaparib by using the PROTAC approach.