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xanthone/cancer du sein
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Chiral resolution of a caged xanthone and evaluation across a broad spectrum of breast cancer subtypes.
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Racemic resolution of (+/-)-MAD28, a representative caged xanthone, was accomplished using (1S, 4R)-(-)-camphanic chloride as the chiral agent. Selective crystallization of the resulting diastereomers in acetonitrile produced, after hydrolysis, the pure enantiomers. Screening of racemic MAD28 and
Synthesis, structure-activity relationship and in vitro pharmacodynamics of A-ring modified caged xanthones in a preclinical model of inflammatory breast cancer.
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Inflammatory breast cancer (IBC) is a highly metastatic, lethal form of breast cancer that lacks targeted therapeutic strategies. Inspired by the promising cytotoxicity of gambogic acid and related caged xanthones in spheroidsMARY-X, an in vitro preclinical IBC model, we constructed a
Gallic acid indanone and mangiferin xanthone are strong determinants of immunosuppressive anti-tumour effects of Mangifera indica L. bark in MDA-MB231 breast cancer cells.
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Vimang is a standardized extract derived from Mango bark (Mangifera Indica L.), commonly used as anti-inflammatory phytomedicine, which has recently been used to complement cancer therapies in cancer patients. We have further investigated potential anti-tumour effects of glucosylxanthone mangiferin
A new class of nonsteroidal aromatase inhibitors: design and synthesis of chromone and xanthone derivatives and inhibition of the P450 enzymes aromatase and 17 alpha-hydroxylase/C17,20-lyase.
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Aromatase (P450arom) is a target of pharmacological interest for the treatment of breast cancer. In this paper, we report the design, synthesis, and in vitro biological evaluation of a series of new (di)benzopyranone-based inhibitors of this enzyme. The design of the new compounds was guided by a
Cytotoxic and antiplasmodial xanthones from Pentadesma butyracea.
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Four new xanthones, butyraxanthones A-D (1-4), were isolated from the stem bark of Pentadesma butyracea, together with six known xanthones (5-10) and a triterpenoid (lupeol). The structures of 1-4 were established by spectroscopic methods. Compounds 1-10 were tested in vitro for antiplasmodial
Antiproliferative activity of xanthones isolated from Artocarpus obtusus.
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An investigation of the chemical constituents in Artocarpus obtusus species led to the isolation of three new xanthones, pyranocycloartobiloxanthone A (1), dihydroartoindonesianin C (2), and pyranocycloartobiloxanthone B (3). The compounds were subjected to antiproliferative assay against human
A new bisanthraquinone and cytotoxic xanthones from Cratoxylum cochinchinense.
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A new bisanthraquinone has been isolated from the stems of Cratoxylum cochinchinense together with vismiaquinone C and 16 known xanthones. Their structures were characterised by using spectroscopic methods. Two of the isolated compounds are modified xanthones (6 and 15) and exhibited strong
Cytotoxic prenylated xanthones from the young fruit of Garcinia mangostana.
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Three new prenylated xanthones, mangostenones C (1), D (2), and E (3), together with 16 known xanthones 4-19, were isolated from the young fruit (7-week maturity stage) of Garcinia mangostana. The structural elucidation of the new compounds was mainly established on the basis of 1D and 2D NMR and
Antiproliferative activity of a new xanthone derivative from leaves of Garcinia nobilis Engl
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A new xanthone, mboudiexanthone (1), together with five known compounds, euxanthone (2), isogarcinol (3), garcinol (4), betulinic acid (5) and zeorin (6) were isolated from the leaves of Garcinia nobilis Engl. The structures were determined by 1D and
Three new xanthones from the leaves of Garcinia lancilimba.
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Three new prenylated xanthones, garcinexanthones G-I (1-3), together with fifteen known ones (4-18) were identified from the leaves of Garcinia lancilimba. Their structures were determined by extensive spectroscopic analyses. Most of the compounds exhibited inhibitory effects against HL-60 (human
Two new xanthones isolated from the stem bark of Garcinia lancilimba.
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Two new xanthones, 1,5,6-trihydroxy-6',6'-dimethyl-2H-pyrano(2',3':3,4)-2-(3-methylbut-2-enyl)xanthone (1) and 1,6,7-trihydroxy-6',6'-dimethyl-2H-pyrano(2',3':3,2)-4-(3-methylbut-2-enyl)xanthone (2), have been isolated from the stem bark of Garcinia lancilimba (Guttiferae), together with six known
Inhibition of CDK2/CyclinE1 by xanthones from the mangosteen ( Garcinia mangostana): a structure-activity relationship study
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Uncontrolled regulation of cyclin dependent kinases (CDKs) has negative implications in many cancers and malignancies and has recently led to the approval of select CDK inhibitors. Herein we present data reporting that xanthones, a class of compounds isolated from the purple mangosteen (Garcinia
Antiproliferative activity of caged xanthones from the leaves of Garcinia wightii T. Anderson.
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Two new caged xanthones, wightiic acid (1) 16-O-methyl wightiic acid (2), along with eight known compounds, gaudichaudic acid E (3), isogaudichaudic acid E (4), ursolic acid (5) stigmasterol (6), lupeol (7), glutinol (8), lupenone (9) and stigmasteryl linoleate (10) were isolated from Garcinia
Xanthones as inhibitors of growth of human cancer cell lines and their effects on the proliferation of human lymphocytes in vitro.
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Twenty-seven oxygenated xanthones have been assessed for their capacity to inhibit in vitro the growth of three human cancer cell lines, MCF-7 (breast cancer), TK-10 (renal cancer) and UACC-62 (melanoma). The effect of these xanthones on the proliferation of human T-lymphocytes was also evaluated.
Influence of New Synthetic Xanthones on the Proliferation and Migration Potential of Cancer Cell Lines in Vitro.
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