Results 21 to 30 of about 44,072 (262)
Marine Drugs, 2016 Anthraquinones and their derivatives constitute a large group of quinoid compounds with about 700 molecules described. They are widespread in fungi and their chemical diversity and biological activities recently attracted attention of industries in such ...
Mireille Fouillaud +4 more
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1-Dimethylamino-9,10-anthraquinone [PDF]
Acta Crystallographica Section E Structure Reports Online, 2011 In the crystal structure of the title compound, C(16)H(13)NO(2), adjacent mol-ecules are linked through C-H⋯π and π-π [centroid-centroid distances = 3.844 (2) Å] contacts. The anthracene ring system and dimethyl-amino group are oriented at a dihedral angle of 38.4 (1)°. In the crystal, the mean planes of adjacent anthracene units are inclined at angles
Niedziałkowski, Paweł +3 more
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Synthesis and cation-receptor properties of macrocyclic imines of anthraquinone [PDF]
, 2018 At the present study a series of crown-containing imines of 1-hydroxy-9,10-anthraquinone with donor and acceptor substituents at the anthraquinone nucleus were synthesized.
Кудреватых, А. А. +1 more
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An Example of a Novel Efficient Plant Extraction Technique: Electromagnetic Induction Heating
Molecules, 2018 A simple and easy to handle extraction procedure based on the use of electromagnetic induction heating is described. To assess the potential, scopes, and limitations of this novel process, extraction and subsequent HPLC quantification of emodin from an ...
Francesco Epifano +4 more
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生物医学转化, 2021 Objective Polygoni Multiflori Radix (PM, He-Shou-Wu), is used as a reputable tonifying traditional Chinese medicine for a long time. However, in recent years, the liver injury caused by PM or its preparations attracted wide attention.
Ren Hongwei +9 more
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Anthraquinones tautomerism: VII. Hydroxy-substituted anthraquinones
Russian Journal of Organic Chemistry, 2007 Tautomerism of β-mono-, β,β'-dihydroxyanthraquinones, and their anions was studied for the first time by quantum-chemical and correlation methods. 2-Hydroxyanthraquinone exists exclusively in 9,10-quinoid form, and its ionization involves a tautomeric transformation into 10-oxido-2,9- anthraquinone.
Fain V.Ya., Zaitsev B.E., Ryabov M.A.
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1-(2-Methoxyanilino)anthraquinone [PDF]
Acta Crystallographica Section E Structure Reports Online, 2010 In the title compound, C(21)H(15)NO(3), the dihedral angle formed between the aromatic ring systems is 71.50 (3)°. The meth-oxy group is coplanar with the benzene ring to which it is connected, the C-O-C-C torsion angle being 6.37 (17)°. The observed conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond, generating an S(6) ring.
Lihua Lu, Liang He
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The Interaction of Human Glutathione Transferase GSTA1-1 with Reactive Dyes
Molecules, 2021 Human glutathione transferase A1-1 (hGSTA1-1) contributes to developing resistance to anticancer drugs and, therefore, is promising in terms of drug-design targets for coping with this phenomenon.
Mohammed Hamed Alqarni +3 more
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DNA-Mediated Electrochemistry [PDF]
, 2008 The base pair stack of DNA has been demonstrated as a medium for long-range charge transport chemistry both in solution and at DNA-modified surfaces. This chemistry is exquisitely sensitive to structural perturbations in the base pair stack as occur with
Barton, Jacqueline K. +2 more
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Molecules, 2012 An ethyl acetate extract of the roots of Rumex dentatus L. was investigated. Three compounds were identified by their spectroscopic data as chrysophanol (1), 6-methyl-7-acetyl-1, 8-dihydroxy-3-methoxy naphthalene-1-O-β-D(L)-glucoside (2) and 6-methyl-7 ...
Yanxia Han +6 more
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