Novel Sesquiterpenoid Skeletons by Wagner-Meerwein Rearrangements of Longipinane-9,13-diol-1-one Derivatives.
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DOI: 10.1021/acs.jnatprod.0c01160
Abstract: The partial or total hydrolysis of (3R,4S,5S,6S,9R,10R,11R)-9,13-diangeloyloxylongipinan-1-one (1), isolated from the roots of Stevia viscida, gave alcohols 2 or 3, respectively, which were subjected to molecular rearrangements with boron trifluoride etherate. Compound 2 afforded (3R,4R,5R,6S,9R,10S,11S)-11,13-oxyneomorelian-1-one… read more here.
Keywords: skeletons wagner; novel sesquiterpenoid; wagner meerwein; meerwein rearrangements ... See more keywords
Roseosporol A, the first isolation of a novel sesquiterpenoid from Streptomyces roseosporus
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DOI: 10.1080/14786419.2018.1484457
Abstract: Abstract A novel sesquiterpenoid, roseosporol A (1), together with 12 known compounds (2–13) were isolated from the ethyl acetate extract of Lsr2-deletion mutant strain of Streptomyces roseosporus. Their structures were determined by spectroscopic methods, including… read more here.
Keywords: novel sesquiterpenoid; isolation novel; roseosporol first; streptomyces roseosporus ... See more keywords
Two Novel Sesquiterpenoid Glycosides from the Rhizomes of Atractylodes lancea
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DOI: 10.3390/molecules27185753
Abstract: Secoatractylohexone A (1), an unprecedented secoguaiane lactone glycoside featuring 6/7 cores and dihydroxy-9-guaine-3-one 11-O-β-d-glucopyranoside (2), a 9,10-unsaturated guaiene-type glycoside possessing an uncommon scaffold, were isolated from the water-soluble portion of the ethanolic extract of Atractylodes… read more here.
Keywords: glycosides rhizomes; sesquiterpenoid glycosides; rhizomes atractylodes; novel sesquiterpenoid ... See more keywords