A novel bixanthone, named schomburgkixanthone (), was isolated from the twigs of , along with six known compounds, griffipavixanthone (), 4-hydroxyxanthone (), 2-hydroxyxanthone (), 1,6-dihydroxyxanthone (), 1,7-dihydroxyxanthone (), and 1,3,5-trihydroxyxanthone (). The structure of was identified by the application of NMR and MS data analyses and comparison with previous reports. Compound showed the most powerful inhibition of rat intestinal -glucosidase, with IC values of 0.79 for maltase and 1.81 mM for sucrase. Compound most strongly inhibited sucrase, with an IC value of 4.58 mM.
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| http://dx.doi.org/10.1080/14786419.2020.1716351 | DOI Listing |
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Schomburgkixanthone, a novel bixanthone from the twigs of .
Nat Prod Res
November 2021
Faculty of Science and Technology, Thammasat University Lampang Campus, Lampang, Thailand.
A novel bixanthone, named schomburgkixanthone (), was isolated from the twigs of , along with six known compounds, griffipavixanthone (), 4-hydroxyxanthone (), 2-hydroxyxanthone (), 1,6-dihydroxyxanthone (), 1,7-dihydroxyxanthone (), and 1,3,5-trihydroxyxanthone (). The structure of was identified by the application of NMR and MS data analyses and comparison with previous reports. Compound showed the most powerful inhibition of rat intestinal -glucosidase, with IC values of 0.
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