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KMID : 0620720200260020151
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Natural Product Sciences
2020 Volume.26 No. 2 p.151 ~ p.157
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Phytochemical Constituents of Phyllanthus urinaria
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Cha Joon-Min
Park Jong-Eel
Choi Sang-Un
Lee Kang-Ro
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Abstract
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Extensive column chromatography separation of the MeOH extract from the aerial parts of Phyllanthus urinaria afforded seventeen compounds (1 - 17). The structures of the compounds were elucidated by physicochemical and spectroscopic methods to be 5′-β-D-glucopyranosyloxyjasmonic butyl ester (1), (+)- cucurbic acid (2), dendranthemoside B (3), boscialin 4′-O-β-D-glucoside (4), 4,5-dihydroblumenol A (5), (6R,9R)-megastigman-4-ene-9,13-diol (6), (3S,5R,6S,9R)-3,6-dihydroxy-5,6-dihydro-β-ionol (7), (6S,9R)-roseoside (8), mallophenol B (9), icariside B5 (10), corchoinoside B (11), canangaionoside (12), 5,6-epoxy-3-hydroxy-7- megastigmen-9-one (13), icariside B2 (14), (7E)-2β,3β-dihydroxy-megastigm-7-en-9-one (15), betulalbuside A (16), and loliolide (17). The compounds 1, and 3 - 16 were isolated for the first time from this plant. The absolute stereochemistry of compound 1 was newly determined. The isolated compounds were tested for cytotoxic activity against four human tumor cell lines in vitro using a Sulforhodamin B bioassay, but all the compounds showed weak cytotoxic activities.
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KEYWORD
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Phyllanthus urinaria, Euphorbiaceae, Cytotoxicity
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