Isolation and Structural Characterization of a New Minor Penta β-D-Glucopyranosyl Diterpene from Stevia rebaudiana Bertoni - American Journal of Plant Sciences

AJPS > Vol.5 No.24, November 2014

Isolation and Structural Characterization of a New Minor Penta β-D-Glucopyranosyl Diterpene from Stevia rebaudiana Bertoni ()

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DOI: 10.4236/ajps.2014.524368 3,280 Downloads 4,300 Views Citations

Author(s)

Venkata Sai Prakash Chaturvedula

Affiliation(s)

Wisdom Natural Brands, Gilbert, AZ, USA.

ABSTRACT

From the commercial extract of the leaves of Stevia rebaudiana Bertoni, a new minor ent-kaurane diterpene glycoside having five β-D-glucopyranosyl units has been isolated. The chemical structure of the new compound was characterized as 13-[(2-O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid-(2-O-β-D-glucopyranosyl-6-O-β-D-glucopyranosyl-β-D-glucopyranosyl) ester (1) on the basis of extensive 1D (¹H & ¹³C) and 2D NMR (TOCSY, HMQC, and HMBC), and High Resolution (HR) mass spectroscopic data as well as hydrolysis studies.

KEYWORDS

Stevia rebaudiana, Compositae, Asteraceae, Diterpenoid Glycoside, Spectral Data, Hydrolysis Studies, Structure Characterization

Share and Cite:

Prakash Chaturvedula, V. (2014) Isolation and Structural Characterization of a New Minor Penta β-D-Glucopyranosyl Diterpene from Stevia rebaudiana Bertoni. American Journal of Plant Sciences, 5, 3519-3525. doi: 10.4236/ajps.2014.524368.

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