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spirostanol/solanum
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15 resultados
Three unusual 22-beta-O-23-hydroxy-(5 alpha)-spirostanol glycosides from the fruits of Solanum torvum.
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Three novel 22-beta-O-spirostanol oligoglycosides, torvosides J (1), K (2) and L (3) have been isolated from the fruits of Solanum torvum SWARTZ and their chemical structures have been characterized based on the spectroscopic means. They are worth of note as rare 22-beta-O-spirostanol glycosides.
Characterization of spirostanol saponins in Solanum torvum by high-performance liquid chromatography/evaporative light scattering detector/electrospray ionization with multi-stage tandem mass spectrometry.
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High-performance liquid chromatography with an evaporative light scattering detector and electrospray ionization multistage tandem mass spectrometry (HPLC/ELSD/ESI-MS(n)) was used to identify spirostanol saponins in a saponin extract of Solanum torvum. The fragmentation behavior of saponins was
Anti-Inflammatory Spirostanol and Furostanol Saponins from Solanum macaonense.
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Eight new spirostanol saponins, macaosides A-H (1-8), and 10 new furostanol saponins, macaosides I-R (9-18), together with six known spirostanol compounds (19-24) were isolated from Solanum macaonense. The structures of the new compounds were determined from their spectroscopic data, and the
A new spirostanol glycoside from fruits of Solanum indicum L.
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A new characteristic steroidal glycoside of the 23S,26R-hydroxylated spirostanol-type named indioside F was isolated from the fruit of Solanum indicum, along with indioside A and protodioscin. On the basis of spectroscopic analysis, the structure of indioside F was found to be
New spirostanol glycosides from Solanum nigrum and S. jasminoides.
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A new characteristic steroidal glycoside possessing a hydroxyl group at C-23, inunigroside A (1), was isolated from the withered berries of Solanum nigrum L. On the basis of spectroscopic analysis, the structure of 1 was characterized as (5α,22S,23S,25R)-3β,23-dihydroxyspirostane
Antimycotic spirostanol saponins from Solanum hispidum leaves and their structure-activity relationships.
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A new spirostanol saponin, together with three known saponins, were isolated from the leaves of Solanum hispidum. The structure of the new saponin was elucidated as 6alpha-O-beta-D-quinovopyranosyl-(25S)-5alpha-spirostan-3beta-ol (1) on the basis of spectroscopic analysis (1H NMR, 13C NMR, 1H-1H
Evidence for separate UDP-glucose: spirostanol and UDP-glucose: solasodine glucosyltransferases in Solanum melongena.
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Two New Steroidal Glucuronides from Solanum lyratum, II1.
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Two new steroidal glucuronides of a furostanol and of a spirostanol derivative along with two known glycosides, SL-a and tigogenin 3- O-beta- D-glucopyranoside, were isolated from the aerial parts of SOLANUM LYRATUM.
Two new steroidal glycosides isolated from the aerial part of Solanum torvum Swartz.
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One novel C-22 steroidal lactone saponin, namely solanolactoside C (1), and one new spirostanol glycoside, namely torvoside Q (2), were isolated from the ethanolic extract of aerial parts of Solanum torvum Swartz. The structures of 1 and 2 were determined by extensive NMR experiments including (1)H
Four new steroidal glycosides from Solanum torvum and their cytotoxic activities.
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Two novel C-22 steroidal lactone saponins, namely solanolactosides A, B (1, 2) and two new spirostanol glycosides, namely torvosides M, N (3, 4) were isolated from ethanol extract of aerial parts of Solanum torvum. Their structures were characterized as solanolide
Anti-neutrophilic inflammatory steroidal glycosides from Solanum torvum.
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Torvpregnanosides A and B, two pregnane glycosides, and torvoside Q, a 23-keto-spirostanol glycoside, along with twelve known steroidal saponins were isolated from aerial parts of Solanum torvum. Of the latter, four of the 23-hydroxy-spirostanol glycosides, and, a yamogenin glycoside, were in this
Solanum incanum and S. heteracanthum as sources of biologically active steroid glycosides: confirmation of their synonymy.
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A new spirostanol saponin (1), along with four known saponins, dioscin (2), protodioscin (3), methyl-protodioscin (4), and indioside D (5), and one known steroid glycoalkaloid solamargine (6) were isolated from the two synonymous species, Solanum incanum and S. heteracanthum. The structure of the
Cytotoxic activities of solanum steroidal glycosides.
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Cytotoxic activities of 20 steroidal glycosides obtained from Solanum genera plants were examined against various cell lines to provide new evidence as follows: 1) As regarding the sugar linkage, the glycosides possessing a beta-chacotriosyl moiety were the most effective and the presence of the
Anti-herpes virus activity of Solanum steroidal glycosides.
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Since some Solanum-genus plants have traditionally been used for anti-cancer and anti-herpes agents from olden times, we examined anti-herpes simplex virus type 1 (HSV-1) activity of typical steroidal glycosides with the frameworks of spirostane (including nuatigenin glycoside), furostane,
Cytotoxic activity of steroidal glycosides from solanum plants.
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Since some Solanum-genera plants have traditionally been used as anti-cancer and anti-herpes agents from olden times, we examined the cytotoxic activity of typical steroidal glycosides with the framework of spirostane, furostane, spirosolane, and pregnane obtained from Solanum plants. Among these
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