Diterpene glycosides from Stevia rebaudiana

Dynamic Chiropractic

关键词: 1H NMR;    13C NMR;    2D NMR;    MS;    diterpene glycosides;    Stevia rebaudianaBertoni;    chemical studies.;   

DOI  :  

学科分类：医学（综合）

来源: MPA Media

【 摘 要 】

A new diterpenoid glycoside, 13-[(2-O-b-D-glucopyranosyl-b-D-glucopyranosyl)oxy]ent-kaur-16-en-19-oic acid-(4-O-(2-O-a-D-glucopyranosyl)-a-D-glucopyranosyl-b-D-glucopyranosyl) ester (1) was isolated from the commercial extract of the leaves ofStevia rebaudianaalong with the known steviol glycosides including stevioside, rebaudiosides A-G, rubusoside and dulcoside A. The complete1H and13C NMR assignments of the new compound and rebaudioside G (2) were achieved by the extensive NMR (1H and13C, COSY, 1D TOCSY, HSQC, HMBC) and MS spectral data as well as chemical studies.

【 授权许可】

Unknown