It is well known that spirostane-type saponins show various bioactivities. In our on-going program of screening these kinds of constituents from natural products, was found to be rich in them, and nine new spirostanol saponins, Yucca spirostanosides A₁ (), A₂ (), B₁ (), B₂ (), B₃ (), C₁ (), C₂ (), C₃ (), and D₁ (), together with five known ones (-) were isolated from the plant. Their structures were elucidated by extensive spectroscopic methods, including 1D and 2D NMR and MS spectra, and comparing with published data.
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| http://dx.doi.org/10.3390/molecules23010167 | DOI Listing |
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