Synthesis and structure–activity relationships study of cytotoxic bufalin 3-nitrogen-containing-ester derivatives

Add time:07/27/2019    Source:sciencedirect.com

A series of bufalin 3-nitrogen-containing-ester derivatives (2–6) were designed, synthesized, and evaluated for their proliferation inhibition activities against human cervical epithelial adenocarcinoma (HeLa) and non-small-cell lung cancer (A549) cell lines. The structure–activity relationships (SARs) of this new series were described in this paper. Cytotoxicity data revealed that C3 moiety had important influence on cytotoxic activity. On two cell lines, the bufalin-3-piperidinyl-4-carboxylate compound 2 (IC50 values on HeLa and A549 cell lines were 0.76 nM and 0.34 nM, respectively) displayed a significant cytotoxic potency compared to the parent compound bufalin.

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