[A new sesquiterpene from Syringa oblata].

In this study, the chemical components of ethanol extract from the aromatic parts of Syringa oblata were systematically separated and purified by silica gel column chromatography, thin layer plate preparation and liquid phase preparation. Combined with ultraviolet analyzer(UV), infrared analyzer(IR), nuclear magnetic resonance analyzer(NMR), high resolution mass spectrometer(HR-ESI-MS), X-ray diffraction and other spectrum technology as well as literature physicochemical data comparison methods for structural identification, a total of 10 compounds were identified. They were identified as oblatanoid D(1),(-)-T-muurolol(2), oblatanoid E-G(3-5), 14-noreudesma-3-hydroxy-3-en-2,9-dione(6), 1-isopropyl-2,7-dimethylnaphthalene(7), isocoradiol(8), α-calacorene(9), cadin-4-en-1-β-ol(10).

A new abietane diterpene tuurgan a from .

Five abietane diterpenes compounds were separated from petroleum ether extraction sites of ethanol extract of , and Compound was identified as a new abietane diterpenes compound by NMR and mass spectrometry, named as Tuurgan A of ; and Compounds - separated from for the first time were identified as Ferruginol (), Taxodione (), Caryopterisoid Q (), and Huperphlegmarin B (). The anti-lung cancer activity of the Compounds - were determined, which results showed that they all had high A549 cytotoxicity.

Two New Compounds from Artemisia sacrorum.

Two new compounds, named as sacric acid A (1) and sacric acid B (2), were isolated from the EtOAc extract of Artemisia sacrorum Ledeb. This is the first report on the structure elucidation of these compounds based on UV, IR, and extensive ID and 2D NMR spectroscopic, and ESI-MS techniques.

Anti-inflammatory effects, nuclear magnetic resonance identification, and high-performance liquid chromatography isolation of the total flavonoids from Artemisia frigida.

The aerial parts of Artemisia frigida Willd. are used to treat joint swelling, renal heat, abnormal menstruation, and sore carbuncle. The anti-inflammatory effects of A.

[Study on Chemical Constituents of Panzeria alaschanica].

Objective: To study the chemical constituents of the ethyl acetate extract from Panzeria alaschanica.

Methods: The chemical constituents of ethyl acetate extract from Panzeria alaschanica were isolated and purified by silica gel. Their structures were i- dentified by means of spectra.

Analgesic effects and structural elucidation of two new flavone C-glycosides from Artemisa sacrorum.

The present study was designed to isolate and characterize the analgesic compounds of Artemisa sacrorum Ledeb. The EtOAc crude extracts from the aerial parts of Artemisa sacrorum Ledeb were separated by chromatography and the structures of new compounds were elucidated based on spectral analyses. Analgesic activities of the isolated compounds were assessed in rats with hot plate test and paw pressure assay.

Two new compounds from Paeonia lactiflora.

Two new compounds, namely 5-methyl-4,2',3',5'-tetrahydroxy-4'-methoxy-2-aldehyde biphenyl (1) and 1,8-dioxo-1,8-dihydropyrano[3,4-c]pyran-3,6- dicarboxyl acid, diethyl ester (2), were isolated from the 95% ethanol extract of the roots of Paeonia lactiflora Pall. The structures of 1 and 2 were elucidated by spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.

A biflavonoid glycoside from Lomatogonium carinthiacum (Wulf) Reichb.

A biflavonoid glycoside with a new carbon skeleton, named carinoside A, was isolated from the n-BuOH crude extract of the whole plant of Lomatogonium carinthiacum (Wulf) Reichb. The structure of the new compound was elucidated by using spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.

A new sesquiterpene from Ixeris chinensis.

The petroleum ether (PE) extract from Ixeris chinensis was submitted to chromatographic separation. A new sesquiterpene, namely 14-noreudesma-3-hydroxy-3-en-2,9-dione, was isolated from the PE extract. The structures of the sesquiterpene was elucidated by using spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.