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Ars Pharmaceutica (Internet)

On-line version ISSN 2340-9894


BERRIO ESCOBAR, Jhon Fernando et al. Synthesis and cytotoxic activity of conjugates of the uridine with triterpenes on breast cancer cells. Ars Pharm [online]. 2016, vol.57, n.2, pp.55-62. ISSN 2340-9894.

Aims: Synthesize of uridine acetonide conjugates with triterpenoids (cholesterol and 3β-5α,8α-endoperoxide-cholest-6-en-3-ol) and succinic acid as linking. Methods: The acetonide derivative of uridine was prepared with acid catalysis in acetone. Sterols succinates were prepared with succinic anhydride and nucleophilic catalyst 4-N,N-dimethylamino-pyridine (DMAP). The conjugates were synthesized by Steglich method with N,N'-dicyclohexylcarbodiimide (DCC) Coupling agent and DMAP. The compounds were characterized by NMR spectroscopy (1H NMR, 13C NMR), and mass spectrometry. The derivatives were assessed in Chinese Hamster Ovary (CHO) and breast cancer (MCF-7) cell lines. Results: The conjugates of uridine acetonide with two triterpenes were obtained with yields higher than 80%. The conjugates prepared don't showed significant inhibition of cell viability on MCF-7 and CHO cell lines, furthermore these substances did not show a relationship dose-response. Conclusions: The esterification method with coupling agents allowed obtained uridine conjugates with triterpenoids. However the uridine derivatives don't showed significant cytotoxic activity (p<0,05) against cell lines evaluated.

Keywords : breast cancer; cytotoxic activity; nucleosides; triterpenes; uridine derivatives.

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