An HIV-1 integrase inhibitor and free radical scavenger; inhibits HIV-1 integrase 3' end processing, end joining, and disintegration (IC50s = 0.35, 0.56, and 0.84 μg/ml, respectively); inhibits HIV-1 replication in MT-2 cells (ED50 = 2 μg/ml); dose-dependently reduces the level of free radicals released by FMLP stimulation of PMN cells at 0.25-1 μM; dose-dependently increases cell survival and GSH levels and decreases ROS and LDH release when rat cerebral astrocytes in an oxygen-glucose deprivation/reperfusion assay using rat cerebral astrocytes at 5-100 μM