Share This Author
New lysophosphatidylcholines and monoglycerides from the marine sponge Stelletta sp.
Two new lysophosphatidylcholines (1, 2) and four new monoglycerides (5-8) were isolated from the marine sponge Stelletta sp. by bioactivity-guided fractionation. The planar structures of the new…
Two new chromone glycosides from Drynaria fortunei.
Four new koumine metabolites in rat liver microsomes
The metabolic pathway of koumine was proposed and the cytotoxic activities between kOUmine and its metabolites were also compared in the A549 cell line.
Design and evaluation of self-emulsifying drug delivery systems of Rhizoma corydalis decumbentis extracts
- Hongda Ma, Qingchun Zhao, Yongjun Wang, T. Guo, Ye An, Guo-bing Shi
- Chemistry, BiologyDrug development and industrial pharmacy
- 12 September 2012
It is indicated that SEDDS has the potential to improve the bioavailability of traditional Chinese medicines, in which many active components are hydrophobic, such as RCDE.
Two new benzofuran lignan glycosides from Gelsemium elegans
Isoindolones from Lasiosphaera fenzlii Reich. and Their Bioactivities
Two new, 1 and 2, along with one known isoindolone, 3, were isolated from the AcOEt extract of Lasiosphaera fenzlii Reich. The structures of these compounds were determined as…
A New Glycerol Ether from a Marine Sponge Stelletta Species
A new glycerol ether has been isolated from a marine sponge Stelletta sp. by bioactivity-guided fractionation. The structure was established on the basis of NMR and MS analyses. The compound was…
Antitumor activity of two gelsemine metabolites in rat liver microsomes
- Qingchun Zhao, W. Hua, Li‐jun Wu
- Chemistry, BiologyJournal of Asian natural products research
- 1 September 2010
Gelsemine is one of the major alkaloids from Gelsemium elegans Benth., which has been used as an antitumor remedy in clinic. In this paper, metabolism of gelsemine has been investigated in vitro in…
Two new and four known polyphenolics obtained as new cell-cycle inhibitors from Rubus aleaefolius poir
- C. Cui, Qingchun Zhao, B. Cai, X. Yao, Hiroyuki Osadsa
- ChemistryJournal of Asian natural products research
- 1 January 2002
Two new polyphenolics, rubuphenol and sanguiin H-2 ethyl ester, were isolated together with ellagic acid and 1,2,3,4,6-penta-O-galloyl-g -D-glucopyranose as new cell-cycle inhibitors from Rubus aleaefolius by bioassay-guided separation procedure and the structures of 1 and 2 were elucidated by spectroscopic method.
New acetylenic acids from the marine sponge Stelletta species.
Four new acetylenic acids were isolated from the marine sponge Stelletta sp. by bioactivity-guided fractionation. The planar structures were established on the basis of NMR and MS analysis. The…