Results 181 to 190 of about 73,444 (214)
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Cytotoxic Steroidal Saponins fromPolygonatum punctatum
Chemistry & Biodiversity, 2006Four 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
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Steroid saponins of Trillium kamtschatcense
Chemistry of Natural Compounds, 1973Glycosides — trillosides A and B — have been isolated from the roots ofTrillium kamtschatcense.
V. P. Konyukhov +3 more
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Steroidal saponins of Asparagus adscendens
Phytochemistry, 1982Abstract From the methanol extract of the fruits of Asparagus adscendens sitosterol-β- d -glucoside, two spirostanol glycosides (asparanin A and B) and two furostanol glycosides (asparoside A and B) were isolated and characterized as 3-O-[β- d -glucopyranosyl (1→2)-β- d -glucopyranosyl]-(25S)-5β-spirostan-3β-ol, 3-O-{[β- d -glucopyranosyl(1→2)][α- l -
S.C. Sharma, R. Chand, O.P. Sati
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Steroidal saponins of Costus speciosus
Phytochemistry, 1978Abstract The structures of the saponins B and C have been established as gracillin and dioscin respectively.
R. Tschesche, V.B. Pandey
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ChemInform Abstract: Steroidal Saponins
ChemInform, 2008AbstractChemInform 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 +3 more
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NMR spectroscopy of steroidal sapogenins and steroidal saponins: An update
Magnetic Resonance in Chemistry, 1995AbstractThe 13C NMR chemical shifts of 126 Steroidal sapogenins published between 1983 and 1993 are listed and critical spectral features and advances made in the NMR characterization of these compounds are discussed as a guide for the identification of the parent skeleton and the determination of substitution patterns.
Pawan K. Agrawal +2 more
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Steroidal saponins from the rhizomes of Smilax sieboldii
Phytochemistry, 1992Six new steroidal saponins were isolated from the rhizomes of Smilax sieboldii. Their structures were determined by spectroscopic analysis and hydrolysis to be 3 beta-hydroxy-(25R)-5 alpha-spirostan-6-one (laxogenin) 3-O-beta-D-glucopyranosyl-(1----4)-O-[alpha-L-arabinopyranosyl-(1- ---6)]-beta-D-glucopyranoside, laxogenin 3-O-alpha-L-arabinopyranosyl-(
S, Kubo +4 more
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Steroidal Saponins from Chlorophytum orchidastrum
Journal of Natural Products, 2009Six 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 +7 more
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Steroidal saponins from the stem of Yucca elephantipes
Phytochemistry, 2008Ten steroidal saponins with cis-fused A/B ring, including a smilagenin glycoside, elephanoside A (4), and the five furostanol bisdesmosides, elephanosides B-F (6-10), were isolated from the stems of Yucca elephantipes Regel. (Agavaceae). Their structures were determined by detailed chemical and spectroscopic analysis.
Ying, Zhang +4 more
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