نتایج جستجو برای: 5 hydroxy flavone
تعداد نتایج: 1238016 فیلتر نتایج به سال:
Achillea tenuifolia Lam. (Asteraceae) afforded a dichloromethane fraction from which three known compounds β-sitosterol (compound1), 5-hydroxy, 4',6,7- trimethoxy flavone (salvigenin compound 2), and methyl-gallate (compound 3) were isolated for the first time. The structure of isolated compounds was elucidated by different spectroscopic methods. Applying the molar-ratio method, the complexatio...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
Oxidative stress has been linked to prostate carcinogenesis as human prostate tissue is vulnerable to oxidative DNA damage. Apigenin, a dietary plant flavone, possesses anti-proliferative and anticancer effects; however, its antioxidant properties have not been fully elucidated. We investigated sub-cellular distribution of apigenin, it's binding to DNA and protective effects against H2O2-induce...
Recent days, Ayurveda medicine is becoming one of the best alternatives for the modern medicines for effective control of cardiovascular diseases (CVD) due to their limited side effects and ease of availability to a common man. Vitex negundo (L.) is an aromatic shrub known to possess the active phytochemicals such as 5,3′-dihydroxy-7, 8, 4′-trimethoxyflavanone; 5,3′dihydroxy-6, 7, 4′-trimethoxy...
THE TITLE COMPOUND (SYSTEMATIC NAME 5,6-dihy-droxy-7,8-dimeth-oxy-2-phenyl-chromen-4-one), C17H14O6, is a flavone that was isolated from the petroleum ether-soluble fraction of the rare traditional Chinese medicinal herb Saussurea involucrata. The flavone mol-ecule is almost planar, with a dihedral angle between the planes of the benzo-pyran-4-one group and the attached phenyl group of 1.89 (6)...
Soluble enzyme preparations from irradiated cell suspension cultures of parsley (Petroselinum hortense Hoffm.) catalyse the conversion of flavanone to flavone, dihydroflavonol and flavonol. These reactions require 2-oxoglutarate, Fe2+ and ascorbate as cofactors. In the presence of these cofactors conversion of dihydroflavonol to flavonol was also observed. With this system in vitro biosynthesis...
abstract the cr(iii) and zn(ii) complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl)benzoic acid as ligand have been prepared by reacting cr(no3) and zn(no3)2 and ligand in cloroform. the cr and zn complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl) were also prepared in chloroform and aceton solutions. the uv-visible and ft-ir spectra of...
Recent days, Ayurveda medicine is becoming one of the best alternatives for the modern medicines for effective control of cardiovascular diseases (CVD) due to their limited side effects and ease of availability to a common man. Vitex negundo (L.) is an aromatic shrub known to possess the active phytochemicals such as 5,3′-dihydroxy-7, 8, 4′-trimethoxyflavanone; 5,3′dihydroxy-6, 7, 4′-trimethoxy...
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