Abstract
To develop anti-ischemic stroke drugs with higher blood-brain barrier (BBB) penetrating capability and neuroprotective activity, a series of hybrid compounds containing edaravone analogue and 3-n-butylphthalide (NBP) ring-opened derivatives were synthesized and biologically evaluated. Among them, compound 10a displayed the highest protective activity in SH-SY5Y cells against oxygen and glucose deprivation (OGD) and H2O2 insults. Experiment results indicated that 10a could inhibit platelet aggregation via the synergistic action of the edaravone analogue and NBP, and its oral administration protected the rats against ischemia/reperfusion-induced brain injury. Moreover, 10a effectively inhibited apoptosis and reduced oxidative stress in OGD-exposed cells. Further analysis suggested that 10a might alleviate oxidative damage in SH-SY5Y cells via the modulation of the Nrf2 pathway. Collectively, these findings demonstrate that 10a can emerge as a potential candidate drug for the treatment of ischemic stroke.
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