Results 201 to 210 of about 525,634 (261)

Cytotoxic Steroidal Saponins fromPolygonatum punctatum

Chemistry & Biodiversity, 2006
Four new steroidal saponins, polypunctosides A-D (1-4, resp.), were isolated from the rhizomes of Polygonatum punctatum, together with five known steroidal saponins. On the basis of chemical and spectral evidence, the structures of the new saponins were established as (3beta,23S,25R)-23-(alpha-L-arabinopyranosyloxy)spirost-5-en-3-yl 4-O-(6-deoxy-alpha ...
Qing-Xiong, Yang, Chong-Ren, Yang
openaire   +2 more sources

ChemInform Abstract: Steroidal Saponins

ChemInform, 2008
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
N. P. Sahu, S. Banerjee, N. B. Mondal, D. Mandal   +3 more
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Steroidal Saponins from Chlorophytum orchidastrum

Journal of Natural Products, 2009
Six new spirostane-type saponins (1-6), named orchidastrosides A-F, and chloromaloside D were isolated from an ethanol extract of the roots of Chlorophytum orchidastrum. The saponins have neotigogenin or neogitogenin as the aglycon and oligosaccharidic chains possessing seven to nine sugar units.
Debabrata, Acharya, Anne-Claire, Mitaine-Offer, Nutan, Kaushik, Tomofumi, Miyamoto, Thomas, Paululat, Jean-François, Mirjolet, Olivier, Duchamp, Marie-Aleth, Lacaille-Dubois   +7 more
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Steroidal saponins from Fritillaria pallidiflora Schrenk

Fitoterapia, 2012
Five new steroidal saponins, Pallidifloside D (1), Pallidifloside E (2), Pallidifloside G (5), Pallidifloside H (6) and Pallidifloside I (7), together with seven other steroidal saponins (3, 4, 8-12) were isolated from the dry bulbs of Fritillaria pallidiflora Schrenk. Their structures were established by spectroscopic techniques (IR, MS, 1D and 2D NMR)
Shuo, Shen, Guoyu, Li, Jian, Huang, Chaojun, Chen, Bu, Ren, Ga, Lu, Yong, Tan, Jiaxu, Zhang, Xian, Li, Jinhui, Wang   +9 more
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Cytotoxic steroidal saponins from Ophiopogon japonicus

Steroids, 2013
Four new steroidal saponins, named ophiopogonin P-S (1-4), together with eleven known ones (5-15) were isolated from the tuberous roots of Ophiopogon japonicus. Their structures were elucidated by spectroscopic and chemical analysis. Compounds 2-15 were evaluated for their cytotoxic activity against five human tumor cell lines (HepG2, HLE, BEL7402 ...
Ning, Li, Liang, Zhang, Ke-Wu, Zeng, Yuan, Zhou, Jia-Yu, Zhang, Yan-Yun, Che, Peng-Fei, Tu   +6 more
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Steroidal Saponins from Solanum nigrum

Journal of Natural Products, 2006
Six new steroidal saponins, solanigrosides C-H (2-7), and one known saponin, degalactotigonin (1), were isolated from the whole plant of Solanum nigrum. Their chemical structures were elucidated using spectroscopic analysis, chemical degradation, and derivatization.
Xinlan, Zhou, Xiangjiu, He, Guanghui, Wang, Hao, Gao, Guangxiong, Zhou, Wencai, Ye, Xinsheng, Yao   +6 more
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Steroidal saponins from Lysimachia Paridiformis

Journal of Asian Natural Products Research, 2007
A new steroidal saponin, paridiformoside B (1), was obtained from the EtOH extract of the whole plant of Lysimachia Paridiformis Franch, togerher with one steroidal sapogenin (7) and seven known steroidal saponins (2-6, 8-9). Their structures were elucidated using extensive spectroscopic techniques including 1D and 2D NMR spectra.
Fu-Quan, Xu, Hui-Min, Zhong, Hai-Yang, Liu, Hai-Qing, Liu, Chang-Xiang, Chen   +4 more
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Steroidal saponins fromAnemarrhena asphodeloides

Journal of Asian Natural Products Research, 2013
Two new steroidal saponins, named anemarnoside A and anemarnoside B, along with three known compounds, timosaponin J, timosaponin B II, and timosaponin B, have been isolated from Anemarrhena asphodeloides. Their structures were established by spectroscopic techniques (IR, MS, 1D NMR, and 2D NMR) and by comparison with published data.
Qing-Bo, Liu, Ying, Peng, Ling-Zhi, Li, Pin-Yi, Gao, Yu, Sun, Li-Hong, Yu, Shao-Jiang, Song   +6 more
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Formulation and evaluation of controlled-release of steroidal saponins-loaded collagen microspheres

Materials technology (New York, N.Y.), 2019
The purpose of this study was to develop a collagen (COL) microspheres-based steroidal saponin (SS) formulation which was expected to sustain release of SS with high encapsulation efficiency. The microspheres were prepared by water-in-oil-in water double-
Chunrong Yang, Huazhong Wu, Jianhua Wang
semanticscholar   +1 more source

Cytotoxic steroidal saponins from Trillium kamtschaticum

Bioorganic & Medicinal Chemistry Letters, 2017
Eight new steroidal saponins, trillikamtosides K-R (1-8), along with three known analogues, were isolated from the whole plants of Trillium kamtschaticum. Their structures were unambiguously established by interpretation of spectroscopic data (MS and NMR) and chemical methods.
Xu-Jie, Qin, Yong-Ai, Si, Yu, Chen, Hui, Liu, Wei, Ni, Huan, Yan, Tong, Shu, Yun-Heng, Ji, Hai-Yang, Liu   +8 more
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