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Grayanoids from the Ericaceae family: structures, biological activities and mechanism of action
Grayanoids, occurring exclusively in Ericaceae plants, are well-known highly toxic components from the genera Rhododendron, Pieris, Leucothoe, Craibiodendron, Lyonia, Kalmia, etc. Grayanoids have… Expand
Rapid structural determination of new trace cassaine-type diterpenoid amides in fractions from Erythrophleum fordii by liquid chromatography-diode-array detection/electrospray ionization tandem mass…
- J. Qu, Y. Wang, J. Li, S. Yu, Y. Li, Yun-Bao Liu
- Chemistry, Medicine
- Rapid communications in mass spectrometry : RCM
- 15 July 2007
Electrospray ionization multi-stage tandem mass spectrometry (ESI-MSn), and combination with HPLC (HPLC/ESI-MSn), have been extensively applied to on-line analysis of natural products. Hyphenation of… Expand
Antiviral spirooliganones A and B with unprecedented skeletons from the roots of Illicium oligandrum.
Two novel spirooliganones A (1) and (2), a pair of spiro carbon epimers, with a rare dioxaspiro skeleton were isolated from the roots of Illicium oligandrum. The structures were fully determined by… Expand
Bioactive sesquiterpenoids from the roots of Artabotrys hexapetalus
Abstract Seven pairs of sesquiterpenes (1a/1b–7a/7b), a new peroxy-bridge sesquiterpene (8), and a new peroxy-bridge norsesquiterpene (9), together with five known compounds, were isolated from the… Expand
Phenolic constituents from the roots of Alangium chinense
Abstract Three new phenolics ( 1 – 3 ) and twenty-eight known compounds ( 4 – 31 ) were isolated from an ethanolic extract of roots of Alangium chinense . Compound 11 exhibited antiviral activity… Expand
New sesquiterpenes from the roots of Coriaria nepalensis
Abstract Six new trace sesquiterpenes, corialactones A–D (1–4), coriantone (5), corianol (6), together with nine known ones (7–15), were isolated from the roots of Coriaria nepalensis. The structures… Expand
Rearranged prenylated C6-C3 compounds and a highly oxygenated seco-prezizaane-type sesquiterpene from the stem bark of Illicium oligandrum.
- W. Tang, S. Ma, S. Yu, J. Qu, Yun-Bao Liu, J. Liu
- Chemistry, Medicine
- Journal of natural products
- 4 June 2009
Three new rearranged prenylated C(6)-C(3) compounds, named illioliganones A, B, and C (1-3), and a new highly oxygenated seco-prezizaane-type sesquiterpene, oligandriortholactone (7), together with… Expand
Antinociceptive Grayanoids from the Roots of Rhododendron molle.
Nine new grayanoids (1-9), together with 11 known compounds, were isolated from the roots of Rhododendron molle. The structures of the new compounds (1-9) were determined on the basis of… Expand
Lycojaponicumins D and E: two new alkaloids from Lycopodium japonicum.
Two new alkaloids, lycojaponicumins D (1) and E (2), were isolated from the club moss Lycopodium japonicum. Their structures were elucidated by spectroscopic methods, calculated ECD, CD experiments… Expand
Cytotoxic cardenolides from the stems of Periploca forrestii
Six new cardenolides, periforosides D-E (1-2), periforgenin C (3) and periforosides F-H (4-6), as well as 10 previously identified cardenolides (7-16) were isolated from the ethanol extract of the… Expand