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liriodenine/magnolia
L'enllaç es desa al porta-retalls
11 resultats
Liriodenine inhibits the proliferation of human hepatoma cell lines by blocking cell cycle progression and nitric oxide-mediated activation of p53 expression.
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Liriodenine was isolated from the leaves of Michelia compressa. This study was designed to assess cell cycle arrest, the production of nitric oxide (NO) and p53 expression in liriodenine-treated human hepatoma cell lines, including wild-type p53 (Hep G2 and SK-Hep-1). As evidenced by flowcytometric
LIRIODENINE FROM MICHELIA CHAMPACA.
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Antiplatelet activities of aporphine alkaloids isolated from leaves of Magnolia obovata.
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Five aporphine alkaloids, N-acetylanonaine ( 1), N-acetylxylopine ( 2), N-formylanonaine ( 3), liriodenine ( 4), and lanuginosine ( 5) as the antiplatelet constituents, were isolated from the methanol extract of leaves of Magnolia obovata. This is the first reported occurrence of 2 and 3 from genus
Constituents of Michelia Rajaniana. Two new germacranolide amides.
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Six components have been isolated from the bark of Michelia rajaniana, and their structures have been determined by spectroscopic analysis. Four of the components have been reported previously: The germacranolide (-)-parthenolide and the oxoaporphinoid alkaloid liriodenine have been observed as
Biofunctional Constituents from Michelia compressa var. lanyuensis with Anti-Melanogenic Properties.
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Seven compounds were extracted and purified from the roots of Michelia compressa var. lanyuensis. These compounds are liriodenine, (-)-N-acetylanonaine, pressalanine A, p-dihydroxybenzaldehyde, 3,4-dihydroxybenzoic acid, (-)-bornesitol and β-sitostenone. These compounds were screened for
Cytotoxic and antiviral activities of aporphine alkaloids of Magnolia grandiflora L.
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Bioassay guided fractionation of the methanol extract of Magnolia grandiflora L. (Magnoliaceae) leaves led to the isolation and characterisation of four aporphine alkaloids, magnoflorine, lanuginosine, liriodenine and anonaine. The cytotoxicities of the pure compounds magnoflorine and lanuginosine
Antimicrobial activity of Michelia champaca.
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The methanol extracts of leaves, seeds, stem and root barks, stem and root heart-woods of Michelia champaca and the obtained fractions (petrol, dichloromethane, ethyl acetate, butanol) exhibited a broad spectrum of antibacterial activity. Fractionation drastically enhanced the level of activity
The constituents of Michelia compressa var. formosana and their bioactivities.
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Phytochemical investigation of the heartwood of Michelia compressa afforded forty-four compounds, which were identified by comparison of experimental and literature analytical and spectroscopic data. Some compounds were evaluated for their anti-inflammatory and anticancer bioactivities. The result
Sesquiterpene lactones and other constituents from a cytotoxic extract of Michelia floribunda.
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The pentane and CHCl3 fractions of a crude extract of Michelia floribunda exhibited cytotoxic activity when tested in KB and P388 tumor cell cultures. Repeated chromatography led to the isolation of three cytotoxic sesquiterpene lactones (costunolide, parthenolide, and santamarine) and a cytotoxic
Bioactive constituents from Michelia champaca.
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(-)-Anonaine (1), (-)-asimilobine (2), (-)-nuciferine (3), (-)-anolobine (4), (-)-romerine (5), (-)-N-acetylanonaine (6), liriodenine (7), (+)-syringaresinol (8), N-trans-feruloyltyramine (9), N-cis-feruloyltyramine (10), scopoletin (11), 4-acetonyl-3,5-dimethoxy-p-quinol (12), vanillin (13),
[Analysis of some species of magnolia introduced to west georgia, on content of aporphine alkaloids and their biological activity].
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The goal of research was study of vegetative organs of Magnolia species introduced to west Georgia on qualitative and quantitative content of aporphine alkaloids and evaluate cytotoxic activity of total alkaloids from M. officinalis and M. glauca against A-549, DLD-1 and WS-1. Qualitative and
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