Abstract
Six, heretofore undescribed, 5′-Methyl-5′-(5-Substituted uracil-1-ylmethyl)-2′-oxo-3′-methylenetetrahydrofurans (F, Cl, Br, I, CH3, H) (6a-f) were synthesized and evaluated against three cell lines (FM-3A, P-388 and U-937). For the preparation of α-methylene-γ-butyrolactone bearing 5-substituted uracils (6a-f), the efficient Reformatsky type reaction was employed which involves the treatment of ethyl α-(bromomethyl) acrylate and zinc with the respective 5-substituted uracil-1-ylacetones (5a-f). The acetone derivatives (5a-f) were directly obtained by the respective alkylation reaction of 5-substituted uracils with chloroacetone in the presence of K2CO3 (or NaH). These lactone compounds6a-f exhibited moderate to significant activity in all of the three cell lines, and6b, 6c and6e showed significant antitumor activities (inhibitory concentrations (IC50) ranged from 1.3–3.8 μg/ml).
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Kim, J.C., Kim, JA., Kim, SH. et al. Synthesis and antitumor evaluation of α-methylene-γ-butyrolactone-linked to 5-Substituted uracil nucleic acid bases. Arch. Pharm. Res. 19, 235–239 (1996). https://doi.org/10.1007/BF02976897
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DOI: https://doi.org/10.1007/BF02976897