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. 2011 Apr 4;16(4):2937-43.
doi: 10.3390/molecules16042937.

A new diterpene glycoside from Stevia rebaudiana

Venkata Sai Prakash Chaturvedula  1 , Indra Prakash
Affiliations

A new diterpene glycoside from Stevia rebaudiana

Venkata Sai Prakash Chaturvedula et al. Molecules. .

Abstract

From the commercial extract of the leaves of Stevia rebaudiana, a new diterpene glycoside was isolated besides the known steviol glycosides including stevioside, rebaudiosides A-F, rubusoside and dulcoside A. The new compound was identified as 13-[(2-O-β-D-glucopyranosyl-3-O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid-(2-O-α-L-rhamnopyranosyl-β-D-glucopyranosyl) ester (1) on the basis of extensive spectroscopic (NMR and MS) and chemical studies.

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Figures

Figure 1
Figure 1
Structure of 1 and other compounds.
Figure 2
Figure 2
Key COSY and HMBC correlations of 1.
See this image and copyright information in PMC

References

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