Home  About us  Contact
 

New Glycosides (new + glycoside)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

A New Triterpenoid Saponin and a New Glycoside from Epigynum aurilum

CHINESE JOURNAL OF CHEMISTRY, Issue 12 2003
Jian-Xin Cao
Abstract A new triterpenoid saponin with novel sugar moiety (1), a new trisaccharide derivative (2), as well as a known monosaccharide derivative (3), were isolated from the dried stem of Epigynum aurilum. The structures of compounds 1 and 2 were determined by MS and NMR spectram analyses. [source]

Three New Glycosides from Viburnum plicatumThunb. var. tomentosumMiq.

HELVETICA CHIMICA ACTA, Issue 2 2010
Koichi Machida
Abstract Three new glycosides, 7- O -tigloylsecologanol (1), 7- O -tigloylsecologanolic acid (2), and 3,- O -[(2S)-2-methylbutanoyl]henryoside (3), together with seven known ones, were isolated from the leaves of Viburnum plicatumThunb. var. tomentosumMiq. Their structures were established on the basis of spectral and chemical data. [source]

Two New Kaempferol Glycosides from Androsace umbellata

HELVETICA CHIMICA ACTA, Issue 7 2009
Jun Lei
Abstract Two new kaempferol glycosides, 5-hydroxy-2-(4-hydroxyphenyl)-4-oxo-7-(, - L -rhamnopyranosyloxy)-4H -chromen-3-yl 2- O -acetyl-3- O - , - D -glucopyranosyl- , - L -rhamnopyranoside (1) and 5-hydroxy-2-(4-hydroxyphenyl)-4-oxo-7-(, - L -rhamnopyranosyloxy)-4H -chromen-3-yl , - D -glucopyranosyl-(1,2)-6- O -[(2E)-3-(4-hydroxyphenyl)prop-2-enoyl]- , - D -glucopyranosyl-(1,2)- , - D -glucopyranoside (2), along with ten known compounds, were isolated from the 95% EtOH extract of the whole plant of Androsace umbellata. The structures of the new glycosides were determined on the basis of detailed spectroscopic analyses, including 1D- and 2D-NMR, MS, and chemical methods. [source]