Distribution characteristics of Chinese medicine resources in Turpan Basin, Xinjiang / 中国中药杂志

Based on the results of the fourth national survey of traditional Chinese medicine resources in Turpan city, Xinjiang, this study counted the types of traditional Chinese medicine resources in Turpan Basin. The spatial distribution differences of traditional Chinese medicine resources in Turpan Basin of Xinjiang were analyzed by using grid technology, trend surface analysis, global spatial autocorrelation analysis, and local spatial autocorrelation analysis, so as to clarify the overall change trend and aggregation degree of traditional Chinese medicine resources in Turpan Basin in horizontal and vertical directions. The results showed the following: in the horizontal direction, the species richness of traditional Chinese medicine resources in the central part of Turpan Basin was high, and there were great differences in the species richness of traditional Chinese medicine resources in Turpan Basin under different grid sizes. The spatial scale effect of the richness of traditional Chinese medicine resources in Turpan Basin is obvious. Among them, under the 30 km×30 km scale, the richness of the types of Chinese medicine resources shows a high spatial correlation, and the richness of the types of Chinese medicine resources at 5 km×5 km scale presents a near random distribution state, and the richness of the types of Chinese medicine resources at 80, 90, and 100 km scale sits negatively related. Vertical direction, Chinese medicine resources appear rich at the range of-154-150 m and 900-1 050 m following by range of 1 050-1 200 m.

Chemical constituents from green walnut husks and their antitumor activity in vitro / 中国中药杂志

Fourteen chemical constituents, including 5-hydroxy-4-methoxy-1-tetralone(1), 4,8-dihydroxy-1-tetralone(2), 4,5-dihydroxy-α-tetralone(3), blumenol B(4), dehydrovomifoliol(5), megastigm-5-ene-3,9-diol(6), juglanin B(7), blumenol C(8), loliolide(9), oleracone B(10), syringarsinol(11), pinoresinol(12), methyl 4-hydroxy-3-methoxybenzoate(13), and isovanillic acid(14), were isolated from the dichloromethane fraction of 95% methanol extract of green walnut husks by silica gel and MCI column chromatography, and Pre-HPLC. Their structures were determined by spectroscopic methods, such as NMR, MS and so on. Among them, compounds 1, 4-6, 8-13 were isolated from the green walnut husks for the first time, and compounds 4-6, 8, 10, 12, 13 were isolated from the Juglans genus for the first time. All of isolates were detected their inhibitory activities against HeLa, HGC-27 and Ht-29 cell lines by the MTT assay. The result showed that compounds 2, 3, 7, 9 and 11 exhibited inhibitory activity against the tested cell line. The IC_(50) of 7 were 26.5, 9.0, 25.4 μmol·L~(-1), respectively.

Chemical constituents from roots of Stelleropsis tianschanica / 中国中药杂志

The constituents from 95% ethanol extract of the roots of Stelleropsis tianschanica were purified by column chromatography techniques, leading to the isolation of 17 compounds. Their structures were elucidated by spectroscopic dataas 5'-methoxy lariciresinol(1), pinoresinol(2), daphnoretin(3), acutissimalignan B(4),(+)-secoisolariciresinol(5),(+)-epipinoresinol(6), 7-methyi-daphnoretin(7), thero-8S-7-methoxysyringylglycerol(8), 1-O-methyl-guaiacylglycerol(9), 2R-22'-ferulic acid ester-2,3-dihydroxypropyl ester(10), vesiculosin(11), 4β,5βH-guai-9,7(11)-dien-12,8-olide-1α,8α-diol(12),(-)-nortrachelogenin(13), 4α,5βH-guai-9,7(11)-dien-12,8-olide-1α,8α-diol(14), matairesinol(15), lariciresinol(16)and isolariciresinol(17). Among them, compounds 1-13 wereobtained for the first time fromthe genus Stelleropsis. Compounds 3, 7, 10-14 were tested for their activation of orphan nuclear receptor TR3 with the immunofluorescence technology in 50 μmol•L⁻¹. The results showed that compound 10 displayed moderate activity with the activity ratio of 76.38%, and the others were only about 50.0%.

Chemical constituents from plant of Stelleropsis tianschanica (II) / 中草药

Objective: To further study the chemical constituents of Stelleropsis tianschanica. Methods: The constituents were isolated and purified by silica gel chromatography repeatedly, and the structures were identified by spectra analysis and chemical methods. Results: Twelve compounds including five lignans and three diphenylpentane derivatives were obtained, and named as kusunokinin (1), pluviatolide (2), dibutyl phthalate (3), dipropyl phtalate (4), p-dihydroxybenzene (5), daphneolon (6), 2(S)- hydroxy-1-(4-hydroxy phenyl)-5-phenyl-1-pentanone (7), (2R,3R)-1,5-diphenylpentane-2,3-diol (8). lariciresinol (9), isolariciresinol (10), matairesinol (11), and 4α,5βH-guai-9,7(11)-dien-12,8-olide-12,8α-diol (12). Conclusion: Compounds 1-12 are all obtained from the plant of S. tianschanica and the genus Stelleropsis Pobed. for the first time.

A new sesquiterpenoid from the roots of Stelleropsis tianschanica / 药学学报

Three sesquiterpenoids were isolated from the dichloromethane extract of the roots of Stelleropsis tianschanica Pobed through a combination of various chromatographic approaches, including silica gel, Sephadex LH-20, reverse phase C18 and so on. On the basis of spectroscopic data analysis, they were identified as (+)-guaia-l(10),ll-dien-9-one-5α-hydroxy (1), 4β,5βH-guai-9,7(11)-dien-12,8-olide-1α,8α-diol (2), 4α,5βHguai-9,7(11)-dien-12,8-olide-1α,8α-diol (3). The compound 1 is a new sesquiterpenoid, and the compound 3 was isolated for the first time from the genus Stelleropsis.

Chemical constituents from plant of Stelleropsis tianschanica / 中草药

Objective: To study the chemical constituents from the arerial parts of Stelleropsis tianschanica. Methods: The constituents were isolated and purified by silica gel chromatography repeatedly, and the structures were identified by spectra analysis and chemical methods. Results: Thirteen compounds were isolated from S. tianschanica and the structures were identified as (+)-pinoresinol (1), (-)-pinoresinol (2), 3'-desmethylarctigenin (3), arctigenin (4), pluviatolide (5), umbelliferone (6), 4-(3,4- dimethoxybenzyl)-3-(4-hydroxy-3-methoxybenzyl)-tetrahydrofuran-2-ol (7), daphnogitin (8), daphnetone (9), blumenol B (10), loliolide (11), 4'-hydroxyacetophenone (12), and 4'-hydroxybenzoic acid (13). Conclusion: Compounds 1-13 were all obtained for the first time from the plant of S. tianschanica and the genus Stelleropsis Pobed.