Results 11 to 20 of about 143,165 (330)
Discovery of nitrogenous derivatives of dihydromyricetin in cell culture medium
eFood, 2022 Dihydromyricetin (DMY) is a health‐beneficial flavanonol in the family of flavonoids, extracted from Ampelopsis grossedentata (Hand.‐Mazz.) W. Wang. When investigating the stability of DMY in Dulbecco's modified Eagle's medium (DMEM) solution at 37°C by ...
Haolin Zhang +6 more
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Menadione: a platform and a target to valuable compounds synthesis
Beilstein Journal of Organic Chemistry, 2022 Naphthoquinones are important natural or synthetic compounds belonging to the general class of quinones. Many compounds in this class have become drugs that are on the pharmaceutical market for the treatment of various diseases.
Acácio S. de Souza +8 more
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Regioselectivity of conjugate additions to monoalkyl-1,4-benzoquinones [PDF]
Journal of the Serbian Chemical Society, 2002 The regioselectivity of the reaction of conjugate addition of thiols amines, methanol and hydrogen chloride with the monoalkyl-1,4-benzoquinones avarone and 2-tert-butyl- 1,4-benzoquinone was investigated.
Božić Tatjana T. +5 more
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Frontiers in Chemistry, 2019 The catechol quinone (CQ) motif is present in many biologically relevant molecules throughout endogenous metabolic products, foods, drugs, and environmental pollutants. The CQ derivatives may undergo Michael addition, and has been shown to yield covalent
Shu-Hui Chen, Chun-Wei Li
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Electrocoagulation of Quinone Pigments [PDF]
Molecules, 2006 Some representative quinones, viz. one naphthoquinone (plumbagin) and five anthraquinones (alizarin, purpurin, chrysazin, emodin, and anthrarufin), were subjected to electrocoagulation. It was found that the rate and extent of coagulation of these compounds appears to correlate with the number and relative position of their phenolic substituent groups,
Kanlaya Jumpatong +5 more
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The MarR-Type Repressor MhqR Confers Quinone and Antimicrobial Resistance in Staphylococcus aureus [PDF]
, 2019 Aims: Quinone compounds are electron carriers and have antimicrobial and toxic properties due to their mode of actions as electrophiles and oxidants.
Fritsch, Verena Nadin +9 more
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Protein covalent modification of biologically active quinones [PDF]
Journal of the Serbian Chemical Society, 2004 The avarone/avarol quinone/hydroquinone couple shows considerable antitumor activity. In this work, covalent modification of β-lactoglobulin by avarone and its derivatives as well as by the synthetic steroidal quinone 2,5(10)-estradiene- 1,4,17-trione ...
Sladić Dušan M. +7 more
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Electrochemistry of potential bioreductive alkylating quinones : Part 2. Electrochemical properties of 2,5-bis(1-aziridinyl)-3,6-bis(ethoxycarbonylamino)-1,4-benzoquinone and some model compounds [PDF]
, 1990 The reduction mechanism of 2,5-bis(1-aziridinyl)-3,6-bis(ethoxycarbonylamino)-1,4-benzoquinone (Diaziquone, AZQ) and several model compounds of the mono- and bis(1-aziridinyl)quinone type at the dropping mercury electrode in aqueous solutions was studied.
Blauw, J.S. +6 more
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Quinone and non-quinone redox couples in Complex III [PDF]
Journal of Bioenergetics and Biomembranes, 2008 The Q cycle mechanism proposed by Peter Mitchell in the 1970's explicitly considered the modification of ubiquinone two-electron redox properties upon binding to Complex III to match the thermodynamics of the other single-electron redox cofactors in the complex, and guide electron transfer to support the generation of a proton electro-chemical gradient
Zhang, Haibo +5 more
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Molecules, 2019 We report a new boron dipyrromethene (BODIPY)-bridged bisphenoxyl diradicaloid (2), which showed closed-shell diamagnetic character in less polar solvents such as dichloromethane but open-shell diradical character with paramagnetic activity in the very ...
Fang Miao, Hoa Phan, Jishan Wu
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