Bioscience, Biotechnology and Biochemistry 1996-Jun
A new cytotoxic cholestane bisdesmoside from Ornithogalum saundersiae bulbs.
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Bioassay-guided fractionation of the MeOH extract of Ornithogalum saundersiae bulbs led to the isolation of a new cholestane bisdesmoside with potent cytotoxic activities toward leukemia HL-60 and MOLT-4 cells. The structure was deduced mainly from spectroscopic information.