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haplophyllum patavinum/alkaloid
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Pagina 1 a partire dal 18 risultati
In vivo and in vitro production of alkaloids by Haplophyllum patavinum.
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A protocol for shoot induction from callus of Haplophyllum patavinum was established. Two known furoquinoline (skimmianine and haplopine), and three quinolone (edulinine, ribalinine and isoplatydesmine) alkaloids were isolated for the first time from plant material, callus and shoot cultures of this
Alkaloids from Haplophyllum tuberculatum.
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Two new alkaloids, haplotubinone (3) and haplotubine (4), were isolated from the aerial parts of Haplophyllum tuberculatum together with the known lignan diphyllin. The structures of the new alkaloids were established by spectroscopic methods in conjunction with X-ray crystallographic analysis of 3.
Alkaloid, lignan and flavonoid constituents of Haplophyllum tuberculatum from Sudan.
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The aerial parts of Haplophyllum tuberculatum collected in Sudan have yielded the furoquinoline alkaloid skimmianine, the lignan justicidin-A, and 5,7,4'-trihydroxy-6-methoxy-3-O-glucosyl flavone. Skimmianine was identified by direct comparison with authentic material; justicidin-A by analysis of
Accelerated dereplication of crude extracts using HPLC-PDA-MS-SPE-NMR: quinolinone alkaloids of Haplophyllum acutifolium.
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Direct hyphenation of analytical-scale high-performance liquid chromatography, photo-diode array detection, mass spectrometry, solid-phase extraction and nuclear magnetic resonance spectroscopy (HPLC-PDA-MS-SPE-NMR) has been used for accelerated dereplication of crude extract of Haplophyllum
Cytotoxic activity and cell cycle analysis of quinoline alkaloids isolated from Haplophyllum canaliculatum Boiss.
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Bioassay-guided fractionation of Haplophyllum canaliculatum Boiss. (Rutaceae) extract resulted in isolation of five quinoline alkaloids: 7-isopentenyloxy-gamma-fagarine, atanine, skimmianine, flindersine and perfamine. This is the first isolation of these compounds from this endemic species. The
HPLC quantification of alkaloids from Haplophyllum extracts and comparison with their cytotoxic properties.
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An efficient system for the analysis of total alkaloids extracted from the aerial parts from different species of genus Haplophyllum (Rutaceae) by HPLC on a reversed-phase column is described. The HPLC method described was validated for its specificity, linearity and precision using external
Isolation and identification of antifungal and antialgal alkaloids from Haplophyllum sieversii.
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Bioassay-guided fractionation of the hexane/ethyl acetate/water (H/EtOAc/H2O) crude extract of the aerial parts of Haplophyllum sieversii was performed because of preliminary screening data that indicated the presence of growth inhibitory components against Colletotrichum fragariae, Colletotrichum
Screening of 14 alkaloids isolated from Haplophyllum A. Juss. for their cytotoxic properties.
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Further to a systematic chemotaxonomic study of Uzbek Haplophyllum A. Juss. plants selected on ethnopharmacological data, 14 alkaloids were screened for their cytotoxic properties. As a first selection for interesting compounds, each alkaloid was tested against two human cancer cell lines (HeLa and
New Alkaloids from Haplophyllum glabrinum and Ruta graveolens.
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A new prenylated arylnaphthalene lignan from Haplophyllum myrtifolium.
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A novel prenylated arylnaphthalene lignan, 7-O-(3-methyl-2-butenyl)isodaurinol, was isolated from Haplophyllum myrtifolium and identified on the basis of detailed spectral analyses, including 2D-NMR spectrometry. The known furoquinoline alkaloids, dictamnine, robustine, gamma-fagarine and
Haplophytin-A induces caspase-8-mediated apoptosis via the formation of death-inducing signaling complex in human promyelocytic leukemia HL-60 cells.
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Haplophytin-A (10-methoxy-2,2-dimethyl-2,6-dihydro-pyrano[3,2-c]quinolin-5-one), a novel quinoline alkaloid, was isolated from the Haplophyllum acutifolium. In this study, we investigated the effect of haplophytin-A on the apoptotic activity and the molecular mechanism of action in human
In vitro and in vivo activities of Haplophyllum myrtifolium against Leishmania tropica.
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This study aimed to evaluate the in vitro and in vivo leishmanicidal activity of an endemic Turkish plant and compare its efficacy with a reference drug. In addition to the in vitro activities of the ethanol, acidified and alkaloid extracts and furoquinoline alkaloids skimmianine and gamma-fagarine,
Metabolite Profiling by Hyphenated Liquid Chromatographic Mass Spectrometric Technique (HPLC-DAD-ESI-Q-TOF-MS/MS) and Neurobiological Potential of Haplophyllum sahinii and H. vulcanicum Extracts.
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In the current study, the ethanol extracts of flower, stem, and root parts of two endemic Turkish species, e. g., Haplophyllum sahinii O. Tugay & D. Ulukuş and H. vulcanicum Boiss. & Heldr., were screened against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) associated with
Haplophytin-A and B: the alkaloidal constituents of Haplophyllum acutifolium.
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During the phytochemical investigation of Haplophyllum acutifolium, two alkaloids named haplophytin-A (1) and B (2) have been obtained. In addition, some known constituents: flindersine (3), kusunokinin (4), beta-sitosterol, oleanolic acid, cholesterol and hexadecanoic acid, have also been obtained.
Polyphenolic contents, antioxidant activities and UPLC-ESI-MS analysis of Haplophyllum tuberculatum A. Juss leaves extracts.
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The aim of this study is to determine the phytochemical profile, the total polyphenolic contents and the antioxidant activities of Haplophyllum tuberculatum leaves extracts. The most active extracts were analyzed by ultra-high performance liquid chromatography coupled to electrospray ionization mass
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