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The phytochemical investigation of the roots of Dregea sinensis Hemsl yielded six new polyhydroxy steroidal glycosides (1–6). The chemical structures have been elucidated on the basis of extensive one- and two-dimensional NMR spectroscopy, as well as by mass spectrometry. The cytotoxic activity of these compounds were evaluated in vitro while compounds 3 and 4 showed weak activity against human leukemia...
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