Three novel 14-epiarborane triterpenoids from Imperata cylindrica Beauv. var. major

[Display omitted] •Three novel triterpenoids were isolated from the rhizomes of Imperata cylindrica.•Their structures were determined using spectroscopic methods including 2D NMR and using NMR shift reagents.•The presence of these compounds suggests a novel biosynthetic route for these unique triter...

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Bibliographic Details
Published inPhytochemistry letters Vol. 26; pp. 74 - 77
Main Authors Sakai, Yuki, Shinozaki, Junichi, Takano, Akihito, Masuda, Kazuo, Nakane, Takahisa
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2018
Subjects
Arborane
Imperata cylindrica
Poaceae
Triterpenoid
Poaceae
Arborane
Imperata cylindrica
Triterpenoid
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Summary:[Display omitted] •Three novel triterpenoids were isolated from the rhizomes of Imperata cylindrica.•Their structures were determined using spectroscopic methods including 2D NMR and using NMR shift reagents.•The presence of these compounds suggests a novel biosynthetic route for these unique triterpenoids. Three novel triterpenoids, 14-epiarbor-7-en-3β-ol (1), 14-epiarbor-7-en-3β-yl formate (2) and 14-epiarbor-7-en-3-one (3) were isolated from the rhizomes of Imperata cylindrica. Their structures were determined using spectroscopic methods including 2D NMR and using NMR shift reagents. These unique triterpenoid skeletons were isolated for the first time and the presence of these compounds suggests a novel biosynthetic route for triterpenoids.
ISSN:1874-3900
1876-7486
DOI:10.1016/j.phytol.2018.05.002