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  • Title: Synthesis of ring-C modified oleanolic acid derivatives and their cytotoxic evaluation.
    Author: Pattnaik B, Lakshma Nayak V, Ramakrishna S, Venkata Mallavadhani U.
    Journal: Bioorg Chem; 2016 Oct; 68():152-8. PubMed ID: 27522460.
    Abstract:
    Ring-C of oleanolic acid was chemically modified by treating with NBS under a variety of experimental conditions. The structures of the synthesized compounds were established by spectral analysis ((1)H &(13)C NMR and Mass). All the compounds were evaluated against a panel of five human cancer cell lines by using MTT assay. Among the tested compounds, 2 and 7 showed significant activity against breast cancer cell line, MCF-7. Most significantly, compound 7 showed several folds enhanced activity against MCF-7 cancer cell lines (IC50: 2.96μM) than that of the parent (1) and the intermediate compound (6). Flow cytometric analysis revealed that these compounds arrested the cell cycle in G0/G1 phase and induced mitochondrial mediated apoptosis.
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