title: Two minor diterpene glycosides from the leaves of Stevia rebaudiana.
abstract: Two new new diterpene glycosides, 13-[(2-O-(6-O-beta-D-glucopyranosyl)-beta-D-glucopyranosyl-beta-D-glucopyranosyl)oxy] kaur-16-en-18-oic acid beta-D-glucopyranosyl ester (1) and 13-[(2-O-beta-D-glucopyranosyl-3-O-beta-D-fructofuranosyl-beta-D-glucopyranosyl)oxy] kaur-16-en-18-oic acid beta-D-glucopyranosyl ester (2) were isolated from the leaves of Stevia rebaudiana, along with the known steviol glycosides stevioside, rebaudiosides A-F and dulcoside A. The structures of the two new compounds were established on the basis of extensive 2D NMR (COSY, HSQC, and HMBC), MS and chemical studies.
authors.affiliation: The Coca-Cola Company, One Coca-Cola Plaza, Atlanta, GA 30313, USA.
authors.forename: Venkata Sai Prakash
authors.initials: VS
authors.lastname: Chaturvedula
authors.forename: Joshua
authors.initials: J
authors.lastname: Rhea
authors.forename: Dennis
authors.initials: D
authors.lastname: Milanowski
authors.forename: Ulla
authors.initials: U
authors.lastname: Mocek
authors.forename: Indra
authors.initials: I
authors.lastname: Prakash
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D036625:Stevia / Q000737:chemistry*
chemical_list: D004224:Diterpenes; D006027:Glycosides