Structure elucidation and NMR assignments of a new sesquiterpene of volatile oil from Willd.

A new sesquiterpene, artefrigin (), together with four known sesquiterpenes were isolated from the volatile oil of Willd. The structure of was elucidated by spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.

Synthesis and antitumor activity of sacroflavonoside.

Sacroflavonoside, a new derivative of diphenylethene, was isolated from , which have been found to possess the inhibitory effect on the proliferation of gastric carcinoma cells (MKN-45) in our previous studies. With anisaldehyde (SM-A) as starting material, the sacroflavonoside was synthesized by nucleophilic addition, electrophilic substitution and dehydration cyclization. The structure of sacroflavonoside was established by 1 D (H NMR and C NMR) and 2 D-NMR (HSQC and HMBC) spectral analysis.

Structure elucidation and NMR assignments of a new alkaloid from (L.) Soják.

A new alkaloid, named as panalasin (), was isolated from the ethyl acetate extract from (L.) Soják. The structure of was elucidated by spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.

Antihyperlipidemic Effect, Identification and Isolation of the Lipophilic Components from Artemisia integrifolia.

L (Compositae) is a medicinal and edible plant. To investigate its antihyperlipidemic effect, a crude lipophilic extract and the composing compounds were isolated and fractioned from the petroleum ether extract of aerial parts of using column chromatography on silica gel. The anti-hyperlipidemia effect was studied in a rat model of acute hyperlipidemia, which was induced by triton WR-1339.