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- Title
Additional Minor Diterpene Glycosides from Stevia rebaudiana Bertoni.
- Authors
Prakash, Indra; Chaturvedula, Venkata Sai Prakash
- Abstract
Two additional novel minor diterpene glycosides were isolated from the commercial extract of the leaves of Stevia rebaudiana Bertoni. The structures of the new compounds were identified as 13-{β-D-glucopyranosyl-(1→2)-O-[β-D-glucopyranosyl- (1→3)-β-D-glucopyranosyl-oxy} ent-kaur-16-en-19-oic acid {β-D-xylopyranosyl-(1→2)- O-[β-D-glucopyranosyl-(1→3)]-O-β-D-glucupyranosyl-ester} (1), and 13-{β-D-6-deoxyglucopyranosyl-( 1→2)-O-[β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl-oxy} ent-kaur- 16-en-19-oic acid {β-D-glucopyranosyl-(1→2)-O-[β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl- ester} (2), on the basis of extensive 1D (1H- and 13C-) 2D NMR (COSY, HSQC and HMBC) and MS spectroscopic data as well as chemical studies.
- Subjects
DITERPENES; GLYCOSIDES; STEVIA rebaudiana; ASTERACEAE; PLANT extracts; NUCLEAR magnetic resonance spectroscopy; THIN layer chromatography
- Publication
Molecules, 2013, Vol 18, Issue 11, p13510
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules181113510