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The structure of cymbopogone, a novel triterpenoid from lemongrass

✍ Scribed by Malcolm Crawford; Steven W. Hanson; Moustapha E.S. Koker

Book ID
104214993
Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
253 KB
Volume
16
Category
Article
ISSN
0040-4039

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✦ Synopsis

During investigations into the constituenta of the leaf wax of lemongraes, Cnnbooooaon citratug Stapf, two triterpenoids were isolated, a ketone, which we have named cymbopogone, and an alcohol which has been named cymbopogonol.' The spectroscopic and analytical data for cymbopogone, which we present in this paper, are consistent with structure I.

Cymbopogone orystallieed from ethanol aa needles (overall yield based on fresh leave8

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Two novel triterpenoid saponins, phelasin A (1) and phelasin B (2), were isolated from the bark of Anthocephalus cadamba (Roxb) Miq. The structures were established by one-and two-dimensional 1 H and 13 C NMR spectroscopy. The aglycone of 1, phelasingenin (3), is a new compound characterized as 3Λ‡-h