Abstract

Eleven C2-substituted derivatives of resveratrol ( trans-3,4′,5-trihydroxystilbene, RES) were prepared by partial synthesis from RES and evaluated for their cytotoxic activities against a human nasopharyngeal epidermoid tumor cell line KB. Among them, compounds 2 and 3 were more active than 5-fluorouracil (5-FU), an anticancer drug, and compound 5f exhibited similar activity to 5-FU. On the basis of the biological results, structure–activity relationships were discussed.

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