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Comparisonof the experimental and theoretical ECD spectra (vaticahainol B),17
application of the olefin cleavage strategy to a known compound to
get ECDs of the newly separated products (uliginoside B,11 laetevirenol
D18), regioselective, and stereospecific transformations of
a hypothetical biogenetic precursor (t)- 3-viniferin ((t)-ampelopsin
A, (t)-vitisin A),19,20 acid-catalyzed skeletal conversion to get
monoalkyl ether of known derivative (shoreaketone),21 and assignment
based on the comparison of AC of D-b-glucopyranosyl
group (hopeaside E)22 were also conducted to achieve the AC
determination.
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