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rubrofusarin/cassia
Il collegamento viene salvato negli appunti
Pagina 1 a partire dal 18 risultati
[Determination of rubrofusarin gentiobioside in Cassia obtusifolia by HPLC].
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OBJECTIVE
To establish a method for determining the content of rubrofusarin gentiobioside in Cassia obtusifolia.
METHODS
The HPLC with Diamonsil C18 (4.6 mm x 250 mm, 5 microm) column was used, acetonitrile-THF-1% acetic acid (18: 3:79) was used as a mobile phase, with flow rate of 1 mL x min(-1),
Alaternin, cassiaside and rubrofusarin gentiobioside, radical scavenging principles from the seeds of Cassia tora on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical.
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Radical scavenging principles on 1,1-diphenyl-2-picrylhydrazyl(DPPH) radical were isolated from the seeds of Cassia tora L. Assignments of the 1H- and 13C-NMR data showed the active components to be an anthraquinone, alaternin and two naphthopyrone glycosides,
[Studies on the constituents of the seeds of Cassia obtusifolia Linne. N. The structure of new glucoside, cassiaside (nor-rubrofusarin-6-beta-D-glucoside].
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Chemical studies on the oriental plant drugs. XXI. The constituents of Cassia tora L. 2. A glycoside of rubrofusarin.
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[Glycosides of roasted seeds of Cassia obtusifolia].
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OBJECTIVE
To study the chemical constituents of the roasted seeds of Cassia obtusifolia, and to illuminate the change of its effective components before and after being roasted.
METHODS
The compounds were isolated and repeatedly purified by macroporous resin, silica gel column chromatography. Their
A new naphthopyrone derivative from Cassia quinquangulata and structural revision of quinquangulin and its glycosides.
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A novel naphthopyrone derivative, named quinquangulone (1), has been isolated from Cassia quinquangulata, along with the known compounds quinquangulin (2) and its two glycosides (3 and 4), rubrofusarin (5) and its two glycosides (6 and 7), nor-rubrofusarin (8) and its 6-O-glucoside (9), and three
Peroxynitrite scavenging mode of alaternin isolated from Cassia tora.
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Peroxynitrite (ONOO-), formed from the reaction of superoxide (.O2-) and nitric oxide (NO), is a potent oxidant that contributes to the oxidation of various cellular constituents, including lipids, amino acids, sulfhydryls and nucleotides. It can cause cellular injury, such as DNA fragmentation and
New antihepatotoxic naphtho-pyrone glycosides from the seeds of Cassia tora.
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Two new naphtho-pyrone glycosides, 9-[(beta-D-glucopyranosyl-(1----6)-O-beta-D-glucopyranosyl)oxy]-10- hydroxy-7-methoxy-3-methyl-1H-naphtho[2,3-c]pyran-1 -one (5) and 6-[(alpha-apiofuranosyl-(1----6)-O-beta-D-glucopyranosyl)oxy]- rubrofusarin (6), together with cassiaside (3) and
An anthraquinone and three naphthopyrone derivatives from Cassia pudibunda.
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Chemical examination of the methanolic extract of the roots of Cassia pudibunda led to isolation of the new rubrofusarin-6-O-beta-D-glucopyranoside, quinquangulin-6-O-beta- D-apiofuranosyl-(1----6)-O-beta-D-glucopyranoside, quinquangulin-6-O-beta-D-glucopyranoside and chrysophanol dimethyl ether.
Naphthopyrone glucosides from the seeds of Cassia tora with inhibitory activity on advanced glycation end products (AGEs) formation.
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Three naphthopyrone glucosides, cassiaside (1), rubrofusarin-6-O-beta-D-gentiobioside (2), and toralactone-9-O-beta-D-gentiobioside (3), were isolated from the BuOH-soluble extract of the seeds of Cassia tora as active constituents, using an in vitro bioassay based on the inhibition of advanced
Estrogenic and anti-estrogenic activities of Cassia tora phenolic constituents.
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Through an estrogenic activity bioassay-guided fractionation of the 70% ethanolic extract of Cassia tora seeds two new phenolic triglucosides, torachrysone 8-O-[beta-D-glucopyranosyl(1-->3)-O-beta-D-glucopyranosyl(1-->6)-O-beta-D-glucopyranoside] (1) and toralactone
Phenolic constituents of Cassia seeds and antibacterial effect of some naphthalenes and anthraquinones on methicillin-resistant Staphylococcus aureus.
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Thirteen phenolic glycosides including six new compounds were isolated from seeds of Cassia tora (Leguminosae). The structures of the new compounds, rubrofusarin triglucoside (7), nor-rubrofusarin gentiobioside (9), demethylflavasperone gentiobioside (10), torachrysone gentiobioside (11),
Structure elucidation of a sodium salified anthraquinone from the seeds of Cassia obtusifolia by NMR technique assisted with acid-alkali titration.
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A new sodium salt of anthraquinone named sodium emodin-1-O-β-gentiobioside, together with nine known compounds, viz. rubrofusarin-6-O-β-D-gentiobioside, chrysophanol-1-O-β-D-glucopyranosyl-(1-3)-β-D-glucopyranosyl-(1-6)-β-D-glucopyranoside, obtusifolin-2-O-β-D-glucopyranoside,
Two new naphthalenic lactone glycosides from Cassia obtusifolia L. seeds.
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Two new naphthalenic lactone glycosides, (3S)-9,10-dihydroxy-7-methoxy-3-methyl-1-oxo-3,4-dihydro-1H-benzo[g]isochromene-3-carboxylic acid 9-O-β-D-glucopyranoside (1) and (3R)-cassialactone 9-O-β-D-glucopyranoside (2) were isolated from seeds of Cassia obtusifolia Linn., along with five known
Structure Related Inhibition of Enzyme Systems in Cholinesterases and BACE1 In Vitro by Naturally Occurring Naphthopyrone and Its Glycosides Isolated from Cassia obtusifolia.
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Cassia obtusifolia Linn. have been used to improve vision, inflammatory diseases, and as hepatoprotective agents and to promote urination from ancient times. In the present study, we investigated the influence of glycosylation of components of C. obtusifolia and structure-activity relationships
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