Fitoterapia 2008-Jan
Diarylheptanoids from the rhizomes of Alpinia officinarum and their anticancer activity.
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Two new diarylheptanoids (1, 2), together with two known analogs (3, 4), were isolated from the rhizomes of Alpinia officinarum. The new compounds were elucidated to be (5S)-5-hydroxy-7-(3, 4-dihydroxyphenyl)-1-phenyl-3-heptanone (1) and (5R)-5-hydroxy-7-(3-methoxy-4, 5-dihydroxyphenyl)-1-phenyl-3-heptanone (2) based on their spectral analysis. Compound 4 showed moderate cytotoxicity against human tumor cell lines, HepG2, MCF-7 and SF-268, while no significant effect were found for compounds 1-3.