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1.
Two new lignans, syripinnalignans A and B (1 and 2), together with two known lignans, were isolated from the stem of Syringa pinnatifolia Hemsl. Var. alashanensis. The structures of 1 and 2 were elucidated by spectroscopic methods, including extensive 1D and 2D NMR techniques. 相似文献
2.
Jing-Jiao Xue Jing-Li Cao Guang-Yu Yang Jian-Xin Pu Han-Dong Sun 《Journal of Asian natural products research》2013,15(6):492-497
Two new neolignans, schilancifolignans D and E (1 and 2), together with eight known ones, were isolated from the leaves and stems of Schisandra lancifolia. The structures of 1 and 2 were elucidated by spectroscopic methods, including extensive 1D and 2D NMR techniques. Compounds 1 and 2 were tested for their anti-HIV-1 activities and cytotoxicity. Both showed significant potential cytotoxic ability and weak anti-HIV-1 activities. 相似文献
3.
Tran Thu Huong Le Huyen Tram Tran Thuong Quang Le Van Duong Nguyen Hoai Nam 《Journal of Asian natural products research》2013,15(9):923-928
Phytochemical study of the methanol extract of Artocarpus altilis resulted in the isolation of a new prenylated aurone, artocarpaurone (1), together with eight known compounds including two prenylated chalcones (2 and 3), three prenylated flavanones (4–6), and three triterpenes (7–9). The structure of 1 was elucidated as 6-hydroxy-2-[8-hydroxy-2-methyl-2-(4-methyl-3-pentenyl)-2H-1-benzopyran-5-ylmethylene]-3(2H)-benzofuranone by spectroscopic methods including 1D and 2D NMR spectra and FT-ICR-MS. Compound 1 showed moderate nitric oxide radical scavenging activity, whereas 2 and 3 had moderate 2,2-diphenyl-1-picrylhydrazyl radical scavenging effect, compared with the positive control (+)-catechin. 相似文献
4.
Chang-Ling Duan Zhi-Yun Kang Cheng-Ren Lin Yong Jiang Jian-Xun Liu Peng-Fei Tu 《Journal of Asian natural products research》2013,15(10):876-879
Two new homoisoflavonoids ophiopogonone D (1) and ophiopogonanone G (2) were isolated from the fibrous roots of Ophiopogon japonicus. The structures of these two compounds were determined on the basis of spectroscopic means including HR-ESI-MS, 1D, and 2D NMR experiments. The cytotoxic activities of 1 and 2 against Hela and Hep2 cells are described. 相似文献
5.
Two new iridal-type triterpenoids, named forrestins A and B (1 and 2), were isolated from Iris forrestii Dykes by comprehensive chromatographic methods. The structures of 1 and 2 were elucidated by interpretation of extensive spectroscopic data including 1D and 2D NMR and HRESIMS. 相似文献
6.
Sheng-Zhuo Huang Qing-Yun Ma Wei-Wei Fang Feng-Qing Xu Hua Peng Hao-Fu Dai 《Journal of Asian natural products research》2013,15(7):750-755
Three new isopimarane diterpenoids named excoecarins F–H (1–3) were isolated from the EtOAc extract of the Chinese ethnodrug Gua-jing-ban (Excoecaria acerifolia Didr.). Their structures were elucidated by the analysis of spectroscopic data including 1D, 2D NMR and HR-MS. The anti-HIV-1 bioactivity test of 1 and 2 showed weak activity. 相似文献
7.
Jin-Guang Si Hao-Li Sun Tao Zhang Qiu-Bo Zhang Meng-Hua Wang Jia-Huan Chen 《Journal of Asian natural products research》2017,19(11):1102-1107
Two new unsaturated fatty acids, (Z)-octadec-13-en-11-ynoic acid (1) and (Z)-octadec-16-en-12,14-diynoic acid (2), along with six known compounds were isolated from the whole plant of Pothos chinensis. The structures of these compounds were elucidated by detailed spectroscopic analysis, including 1D and 2D NMR data. Compound 2 showed moderate antibacterial activity against Staphylococcus aureus. 相似文献
8.
Tran Thi Hong Hanh Le Thi Thuy Hang Phan Thi Thanh Huong Nguyen Quang Trung Tran Van Cuong Nguyen Van Thanh 《Journal of Asian natural products research》2013,15(8):752-756
AbstractTwo new guaiane sesquiterpene lactones, vulgarolides A and B (1 and 2), were isolated from Artemisia vulgaris aerial parts using various chromatographic separations. The structure elucidation was performed by combination of spectroscopic experiments including 1D and 2D NMR, HR ESI MS, and CD. Their in vitro cytotoxic activities against five human cancer cell lines were also evaluated using SRB method. 相似文献
9.
Four new C19-diterpenoid alkaloids, 3-dehydroxyl-lipoindaconitine (1), 8-dehydroxyl-bikhaconine (2), 19R-acetonyl-talatisamine (3), and 16-hydroxyl-vilmorisine (4), were isolated from the roots of Aconitum ouvrardianum. Their structures were elucidated by spectral analyses, including ESI-MS, HR-ESI-MS, IR, UV, 1D and 2D NMR. 相似文献
10.
San-Yun Zhou Wei-Guang Wang Hong-Mei Li Ru-Bo Zhang Hai-Zhou Li 《Journal of Asian natural products research》2013,15(10):861-866
From the fruits of Schisandra sphenanthera (Schisandraceae), a new 3,4-seco-lanostane triterpenoid, schisanlactone H (1), and a new monocyclofarnesane sesquiterpenoid, sphenanthin A (2), were isolated. Their structures were elucidated by spectroscopic methods including extensive 1D and 2D NMR techniques. 相似文献
11.
Chun Wu Lei Wang Xin-Xin Yang Ying-Hui Duan Yi Dai Ren-Wang Jiang 《Journal of Asian natural products research》2013,15(5):434-439
A new ursane-type triterpenoid (1), together with 15 known compounds (2–16), was isolated from the barks of Schefflera heptaphylla (L.) Frodin. The structure of the new compound was determined on the basis of extensive spectroscopic data including IR, HR-ESI-MS, 1D and 2D NMR, and further confirmed by single-crystal X-ray diffraction. Compounds 2–6 were isolated from Schefflera genus for the first time. 相似文献
12.
Phytochemical investigation on the stems of Trigonostemonheterophyllus led to the isolation of a new lariciresinol-based lignan glycoside, trigonoheteran (1), together with a known lignan glycoside, aviculin (2). Their structures were elucidated by spectroscopic methods including 1D and 2D NMR (HMQC, 1H–1H COSY, HMBC, and NOESY). 相似文献
13.
Yan Qi Da-Ke Zhao Shu-Hui Zi Li-Mei Zhang Cheng-Xing Guo Gui-Qiong Li 《Journal of Asian natural products research》2016,18(4):366-370
Two new C19-diterpenoid alkaloids, straconitines A (1) and B (2), were isolated from the roots of Aconitum straminiflorum. Their structures were elucidated as 14-benzoylducloudine D (1) and 6-hydroxy-14-benzoylducloudine D (2) based on spectroscopic analysis, including IR, ESI-MS, HR-ESI-MS, 1D, and 2D NMR. 相似文献
14.
Hua Lin Yu-Wei Zhang Ying Hua Yong-Li Bao Yin Wu Lu-Guo Sun 《Journal of Asian natural products research》2013,15(8):819-824
Three new compounds, 3,6-dihydroxy-4,5-dimethoxy-1,8-naphalic anhydride (1), 3,4,5,6-tetrahydroxy-1,8-naphalic anhydride (2), and methyl (7E,9E)-6,11-dioxononadeca-7,9-dienoate (3), were isolated from the stem bark of Juglans mandshurica. Their structures were elucidated on the basis of spectroscopic evidence, including 1D and 2D NMR, HR-TOF-MS, and by comparison with the literature data. 相似文献
15.
Jie Ma Teng-Fei Ji Jian-Bo Yang Ai-Guo Wang 《Journal of Asian natural products research》2013,15(5):508-514
A chemical investigation on the aerial parts of Hypericum scabrum L. resulted in the isolation of three new phloroglucinol derivatives, hyperscabrins A (1), B (2), and C (3), together with one known compound, (2R,3R,4S,6R)-3-methyl-4,6-di(3-methyl-2-butenyl)-2-(2-methyl-1-oxopropyl)-3-(4-methyl-3-pentenyl)-cyclohexanone (4). The structures were elucidated by means of spectroscopic methods, including MS, IR, 1D NMR, and 2D NMR, and the absolute configurations of chiral centers in these phloroglucinol derivatives were determined for the first time by studying their circular dichroism spectra. 相似文献
16.
Hong Hanh Thi Tran Phong Nguyen Viet Thanh Nguyen Van Huong Thu Tran Cuong Nguyen Xuan 《Journal of Asian natural products research》2017,19(12):1183-1190
Using various chromatographic separations, six ergostane-type steroids, including one new compound sinubrassione (1), and two pregnene-type steroid glycosides, including one new compound sinubrassioside (7), were isolated from methanol extract of the Vietnamese soft coral Sinularia brassica. The structure elucidation was confirmed by spectroscopic methods including 1D, 2D NMR and HR-ESI-MS. The cytotoxic activities of all the isolated compounds against three human cancer cell lines were also evaluated using MTT-based colorimetric assays. 相似文献
17.
Vinh Dinh Hua- Ping Zhang Nguyen Viet Tuu Guo-Wei Qin 《Journal of Asian natural products research》2013,15(1-2):155-158
A new geranyl flavanone, 2′-hydroxy-macarangaflavnone A (1), and a known 4′,7-dihydroxy-8-methylflavan were isolated from the leaves of Macaranga triloba (Euphorbiceae). The structure of 1 was elucidated based on spectroscopic methods, including 1D and 2D NMR analysis. 相似文献
18.
Two new abietane diterpene glycosides, wilfordosides A (1) and B (2), were isolated from the roots of Tripterygium wilfordii. The structures of compounds 1 and 2 were established using spectroscopic methods including extensive 1D and 2D NMR analysis, in combination with chemical reactions. 相似文献
19.
Yu Zhu Liao-Bin Dong Zhi-Jun Zhang Min Fan Qin-Feng Zhu Yan-Yan Qi 《Journal of Asian natural products research》2019,21(1):17-24
Three new Lycopodium alkaloids (1–3), together with 15 known alkaloids, were isolated from club moss Lycopodium japonicum. Their structures were determined by extensive spectroscopic analysis, including 1D and 2D NMR spectra. Compound 1 has an unusual β-oriented methyl group substituted at C-15 and an α-hydroxy cyclopentenone moiety. All new alkaloids were evaluated for the inhibition of T-type calcium channel. 相似文献
20.
Hui-Liang Zou Hong-Yu Li Bai-Lian Liu 《Journal of Asian natural products research》2013,15(8):856-860
A new cytotoxic benzophenanthridine isoquinoline alkaloid, named cordatine (1), together with one known alkaloid 8-methoxydihydrochelerythrine (2), was isolated from the fruits of Macleaya cordata. The structure of the new compound was elucidated by spectroscopic methods including 1D and 2D NMR, HR-ESI-MS. Both compounds indicated significant cytotoxicity against MCF-7 and SF-268 cell lines. 相似文献