Two New Iridoid Glycosides from Hedyotis tenelliflora Blume
✍ Scribed by Jing-Feng Zhao; Qin-Mei Yuan; Xiao-Dong Yang; Hong-Bing Zhang; Liang Li
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- German
- Weight
- 63 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Two new iridoid glycosides, teneoside A (=(2a__R__,5__S__)‐5‐[(β‐D‐glucopyranosyl)oxy]‐2a,4a,5,7b‐tetrahydro‐4‐{[(α‐L‐rhamnopyranosyl)oxy]methyl}‐1__H__‐2,6‐dioxacyclopenta[cd]inden‐1‐one; 1) and teneoside B (=methyl (1__S__,5__R__)‐1‐[(β‐D‐glucopyranosyl)oxy]‐1,4a,5,7a‐tetrahydro‐5‐hydroxy‐7‐{[(α‐L‐rhamnopyranosyl)oxy]methyl}cyclopenta[c]pyran‐4‐carboxylate; 2), were isolated from the roots of Hedyotis tenelliflora Blume, along with two known compounds, deacetylasperuloside (3) and scandoside methyl ester (4). Their structures were elucidated by chemical methods (acid hydrolysis) and spectroscopic analyses.
📜 SIMILAR VOLUMES
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
## Abstract Three new iridoid glycosides, hedycorysides A–C (**1**–**3**, resp.), were isolated from the whole plant of __Hedyotis corymbosa__ (Linn.) Lam., along with four known compounds. Their structures were elucidated by extensive 1D‐ and 2D‐NMR analysis, as well as by HR‐ESI‐MS experiments. T
## Abstract Five new anthraquinone glycosides, hedanthrosides A–E (**1**–**5**, resp.) and two new iridoid glycosides, hediridosides A and B (**6** and **7**, resp.), along with two known anthraquinones and four known iridoids, were isolated from the stems of __Hedyotis hedyotidea__ (DC.) Merr. The
Two new megastigmane glycosides, eleganosides A and B (1 and 3, resp.), and one new iridoid glycoside, gouwenoside A (4), together with two known compounds, foliasalacioside B 1 (2) and loganin (5), were isolated from the aerial parts of Gelsemium elegans (Gardn. et Champ.) Benth. (Loganiaceae). The