Nrf2 HO-1 activator 2 (compound 13m), a difluoro-substituted derivative, is a highly potent activator of Nrf2 HO-1. It exhibits substantial neuroprotective and antioxidant properties by activating the Nrf2 HO-1 pathway through phosphorylation of ERK1 2, JNK, or Akt in PC12 cells. This compound finds utility in the investigation of Parkinson's disease (PD) [1].