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erythrina/bakteritsiid
Link salvestatakse lõikelauale
Leht 1 alates 45 tulemused
Antibacterial pterocarpans from Erythrina subumbrans.
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Seven pterocarpans, erybraedin B (1), erybraedin A (2), phaseollin (3), erythrabyssin II (4), erystagallin A (5), erythrabissin-1 (6) and erycristagallin (7), two flavanones, 5-hydroxysophoranone (8) and glabrol (9), and one isoflavone, erysubin F (10), were isolated from the stems of Erythrina
Three new isoflavanones from Erythrina costaricensis.
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Three new isoflavanones, 5,7,3'-trihydroxy-4'-methoxy-6,5'-di(gamma, gamma-dimethylallyl)-isoflavanone (1), 5,3'-dihydroxy-4'-methoxy-5'-gamma,gamma-dimethylallyl-2'',2''-dimethylpyrano[5,6 : 6,7]isoflavanone (2) and 5,3'-dihydroxy-2'',2''-dimethylpyrano[5,6 : 6,7]-2''',2'''-dimethylpyrano[5,6 :
Two new isoflavanones from Erythrina costaricensis.
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Two new isoflavanones, 5,3'-dihydroxy-4'-methoxy-5'-(3-methyl-1,3-butadienyl)-2'',2''-dimethylpyrano[5,6:6,7]isoflavanone (1) and 5,3'-dihydroxy-5'-(3-hydroxy-3-methyl-1-butenyl)-4'-methoxy-2'',2''-dimethylpyrano[5,6:6,7]isoflavanone (2), together with two known isoflavonoids, cristacarpin, and
Isoflavonoids from roots of Erythrina zeyheri.
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Five isoflavonoids, (+/-)-7,2',4'-trihydroxy-8,3'-di(gamma,gamma-dimethylallyl)isoflavanone, (3R)-7,4'-dihydroxy-2'-methoxy-6,8-di(gamma,gamma-dimethylallyl)isoflavanone, (3R)-7,2',4'-trihydroxy-6,8-di(gamma,gamma-dimethylallyl)isoflavan,
Cyclooxygenase inhibiting and anti-bacterial activities of South African Erythrina species.
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Aqueous, ethanolic and ethyl acetate extracts of the bark and leaves of five South African Erythrina species Erythrina caffra, Erythrina humeana, Erythrina latissima, Erythrina lysistemon and Erythrina zeyheri were screened for prostaglandin synthesis-inhibitory and anti-bacterial activity. The bark
Erylivingstone A-C with antioxidant and antibacterial activities from Erythrina livingstoniana.
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The chemical study of Erythrina livingstoniana has led to the isolation of three new flavanones namely 5,7,3'-trihydroxy-4'-methoxy-5'-formylflavanone (erylivingstone A) (1), 5,7,3'-trihydroxy-5'-(2-hydroxy-3-methylbut-3-enyl)-4'-methoxyflavanone (erylivingstone B) (2) and
Antimicrobial flavonoids from the stem bark of Erythrina burttii.
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The chloroform extract of the stem bark of Erythrina burttii showed antifungal and antibacterial activities using the disk diffusion method. Flavonoids were identified as the active principles. Activities were observed against fungi and Gram(+) bacteria, but the Gram(-) bacteria Escherichia coli was
Antimicrobial Evaluation of Erythrinan Alkaloids from Erythrina cristagalli L.
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BACKGROUND
Several species of the genus Erythrina have been used as sedative, antidepressant, and anticonvulsant. Erythrina crista-galli is native to the Pampa Biome and is widely used for medicinal purposes. Erythrinan alkaloids exhibit a range of pharmacological properties.
OBJECTIVE
The aim of
Two new isoflavanones from the roots of Erythrina variegata.
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Two new isoflavanones, eryvarins Y (1) and Z (2), together with three known compounds (3-5) were isolated from the roots of Erythrina variegata. The structures of 1 and.2 were established on the basis of spectroscopic data. The new compounds are peculiar isoflavanones, possessing both a
Six new constituents from the roots of Erythrina variegata.
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Three new isoflavonoids, eryvarins M-O (1-3), two new 2-arylbenzofurans, eryvarins P and Q (4 and 5), and a new 3-aryl-2,3-dihydrobenzofuran, eryvarin R (6), together with three known compounds, were isolated from the roots of Erythrina variegata. The structures of these compounds were established
Antibacterial activity of flavonoids from the stem bark of Erythrina caffra thunb.
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The antibacterial activity of the stem bark of Erythrina caffra Thunb. was investigated against different bacterial strains. The antibacterial activity was determined by a micro broth dilution assay. Antibacterial compounds were isolated and identified using a Bruker Avance III LPO NMR spectrometer.
Antibacterial property of isoflavonoids isolated from Erythrina variegata against cariogenic oral bacteria.
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The antibacterial property of 7 compounds, isolated from Erythrina variegata (Leguminosae) by repeated silica gel column chromatography, against cariogenic oral bacteria was investigated. Extensive spectroscopic study revealed that all were isoflavonoids. Among them,
Antibacterial constituents from the roots of Erythrina herbacea against methicillin-resistant Staphylococcus aureus.
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Two new compounds, erybacin A (1) and erybacin B (2), together with 10 known compounds (3- 12), were isolated from the roots of Erythrina herbacea. Their structures were established on the basis of spectroscopic analyses. Erybacin A is a rare, naturally occurring 1-hydroxy-1,3-diphenylpropan-2-one
Antibacterial activity of isoflavonoids isolated from Erythrina variegata against methicillin-resistant Staphylococcus aureus.
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OBJECTIVE
To screen 16 isoflavonoids isolated from Erythrina variegata (Leguminosae) for their antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA).
RESULTS
The roots of E. variegata were macerated with acetone. The chloroform-soluble fraction of the residue was
Erythrina variegata Linn: A review on morphology, phytochemistry, and pharmacological aspects.
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This review gives an account of the current knowledge on the morphology, phytochemistry, and pharmacological aspects of Erythrina variegata. E. variegata also called Erythrina indica is a thorny deciduous tree growing to 60 feet tall. A wide range of chemical compounds have been isolated, mainly
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