Abstract
Poly-(ADP-ribose) polymerase 1 (PARP1) is the most abundant and well-characterized member of PARP family and plays a significant role in DNA damage detection and repair. Cancer cells with homogeneous recombination deficiency (HRD) depend on PARP1 mediated DNA repair for survival, which makes PARP1 as a potential cancer treatment target. This patent highlights the synthesis and pharmaceutical composition of novel quinazolinone based PARP inhibitors for cancer treatment.