Abstract
Phytochemical study on the methanol extract of the leaves of Phyllanthus reticulatus led to the isolation of two new compounds, phyllanreticosides A (1) and B (2) together with ten known ones (3-12). Their chemical structures were determined by HR-ESI-MS, NMR, and ECD spectra in comparison with the literature. Three ellagitannins, phyllanreticoside A (1), corilagin (3), and phyllanthusiin C (4) inhibited lipopolysaccharide(LPS)-induced nitric oxide production in RAW 264.7 cells with IC50 values of 63.2, 83.2, and 5.6 µM, respectively. In addition, compounds 1, 3, and 4 exhibited significantly antimicrobial activity (MICs: 16-128 µg/mL) towards some of seven microbial strains, including Bacillus cereus, Enterococcus faecalis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Salmonella enterica, and Candida albicans.
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