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Nuclear factor(erythroid-derived 2)-like 2(Nrf2) is a critical transcription factor regulating a cellular protective response that defends cells against toxic insults from a broad spectrum of chemicals.The activation of Nrf2 possesses chemopreventive activity against chemical carcinogenesis.A series of tetrahydroquinazolone derivatives was synthesized and bioevaluated for the Nrf2activity on the nasopharyngeal carcinoma TW01-9ARE-B3.The introduction of 3-pyridinylamino moiety onto 2-position of tetrahydroquinazolone possessed the 3-fold activation of Nrf2 in vitro study.