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Biologically Active Iridoids from Hedyotis diffusa
โ Scribed by Bo Ding; Wei-Wei Ma; Yi Dai; Hao Gao; Yang Yu; Ye Tao; Yi Zhong; Xin-Sheng Yao
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- German
- Weight
- 196 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0018-019X
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โฆ Synopsis
Two new iridoids, 10-O-benzoyl-6'-O-a-l-arabino(1 ! 6)-b-d-glucopyranosylgeniposidic acid (1), deacetyl-6-ethoxyasperulosidic acid methyl ester (2), along with 14 other known iridoids, were isolated from the whole plant of Hedyotis diffusa Willd. Their structures were determined on the basis of spectroscopic analysis. The short-term-memory-enhancement activities of compounds 1, 7 -9, 11, and 13 were evaluated on an Ab transgenic drosophila model.
๐ SIMILAR VOLUMES
## Abstract Three new iridoid glycosides, hedycorysides AโC (**1**โ**3**, resp.), were isolated from the whole plant of __Hedyotis corymbosa__ (Linn.) Lam., along with four known compounds. Their structures were elucidated by extensive 1Dโ and 2DโNMR analysis, as well as by HRโESIโMS experiments. T
## Abstract Two new iridoid glycosides, teneoside A (=(2a__R__,5__S__)โ5โ[(__ฮฒ__โDโglucopyranosyl)oxy]โ2a,4a,5,7bโtetrahydroโ4โ{[(__ฮฑ__โLโrhamnopyranosyl)oxy]methyl}โ1__H__โ2,6โdioxacyclopenta[__cd__]indenโ1โone; **1**) and teneoside B (=methyl (1__S__,5__R__)โ1โ[(__ฮฒ__โDโglucopyranosyl)oxy]โ1,4a,5
The Chemical Investigation of Genus Hedyotis. Part 5. Iridoids from Hedyotis hedyotidea. -The isolation and identification of two new iridoids, the asperulosic acid derivative (I) and asperuloside (II) from Hedyotis hedyotidea is described.
## Abstract Five new anthraquinone glycosides, hedanthrosides AโE (**1**โ**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