title: Additional minor diterpene glycosides from Stevia rebaudiana.
abstract: From the commercial extract of the leaves of Stevia rebaudiana, two additional new diterpenoid glycosides were isolated and their structures were characterized as 13-[(2-O-beta-glucopyranosyl-3-O-beta-D-xylopyranosyl-beta-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid beta-D-glucopyranosyl ester (1) and 13-[(2-O-beta-D-xylopyranosyl-beta-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid beta-D-glucopyranosyl ester (2) on the basis of extensive spectral data (NMR and MS) and chemical studies.
authors.affiliation: The Coca-Cola Company, Organic Chemistry Department, Research and Technology, One Coca-Cola Plaza, Atlanta, GA 30313, USA. vchaturvedula@na.ko.com
authors.forename: Venkata Sai Prakash
authors.initials: VS
authors.lastname: Chaturvedula
authors.forename: Indra
authors.initials: I
authors.lastname: Prakash
mesh_terms: D004224:Diterpenes / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D036625:Stevia / Q000737:chemistry*
chemical_list: C561726:13-((2-O-beta-D-xylopyranosyl-beta-D-glucopyranosyl)oxy) ent-kaur-16-en-19-oic acid beta-D-glucopyranosyl ester; C561725:13-((2-O-beta-glucopyranosyl-3-O-beta-D-xylopyranosyl-beta-D-glucopyranosyl)oxy) ent-kaur-16-en-19-oic acid beta-D-glucopyranosyl ester; D004224:Diterpenes; D006027:Glycosides; D010936:Plant Extracts