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A series of novel 5-fluorouracil derivatives were designed and synthesized, and the compound N1-(2-(4-Methoxy-2-nitrophenoxy)-2-dimethyl acyloxymethyl)-5-fluorouracil(C_(16)H_(16)FN_3O_8, Mr = 397.32) was structurally characterized by 1H-NMR, 13C-NMR, ESI