2. Academic Validation
  3. Structures of the novel diterpene glycosides from Stevia rebaudiana

Structures of the novel diterpene glycosides from Stevia rebaudiana

  • Carbohydr Res. 2011 Jun 1;346(8):1057-60. doi: 10.1016/j.carres.2011.03.025.
Venkata Sai Prakash Chaturvedula 1,  Indra Prakash
Affiliations

Affiliation

  • 1 The Coca-Cola Company, Organic Chemistry Department, Research and Technology, One Coca-Cola Plaza, Atlanta, GA 30313, USA. [email protected]
PMID: 21489412 DOI: 10.1016/j.carres.2011.03.025
Abstract

From the commercial extract of the leaves of Stevia rebaudiana, two new diterpenoid glycosides were isolated besides the known steviol glycosides including stevioside, rebaudiosides A-F, rubusoside, and dulcoside A. The structures of the two new compounds were identified as 13-[(2-O-6-deoxy-β-d-glucopyranosyl-β-d-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid β-d-glucopyranosyl ester (1), and 13-[(2-O-6-deoxy-β-d-glucopyranosyl-3-O-β-d-glucopyranosyl-β-d-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid β-d-glucopyranosyl ester (2), on the basis of extensive NMR and MS spectral data as well as chemical studies.

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