Abstract

A new diterpene glycoside with six β-D-glucopyranosyl units was isolated from the extract of the leaves of Stevia rebaudiana Bertoni, which was identified as 13-[(2- O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid-[2- O-β-D-glucopyranosyl-3- O-(2- O-β-D-glucopyranosyl)-β-D-glucopyrano-syl -β-D-glucopyranosyl) ester (1) based on the extensive NMR (1H and 13C, COSY, HSQC, and HMBC) and mass spectral data as well as hydrolysis studies.

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