Results 31 to 40 of about 46,982 (304)

Novel Anti-Aging Benzoquinone Derivatives from Onosma bracteatum Wall

Molecules, 2019
The aim of this study was to investigate anti-aging molecules from Onosma bracteatum Wall, a traditional medicinal plant used in the Unani and Ayurvedic systems of medicine. During bioassay-guided isolation, two known benzoquinones, allomicrophyllone (1)
Umer Farooq, Yanjun Pan, Dejene Disasa, Jianhua Qi   +3 more
doaj   +1 more source

A Novel Benzoquinone Compound Isolated from Deep-Sea Hydrothermal Vent Triggers Apoptosis of Tumor Cells

Marine Drugs, 2017
Microorganisms are important sources for screening bioactive natural products. However, natural products from deep-sea microbes have not been extensively explored. In this study, the metabolites of bacteriophage GVE2 -infected (Geobacillus sp. E263 virus)
Chenxi Xu, Xumei Sun, Min Jin, Xiaobo Zhang   +3 more
doaj   +1 more source

Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity

German Journal of Pharmaceuticals and Biomaterials
The discovery of acetylcholinesterase inhibitors is important for the treatment of Alzheimer's disease, which is the most common type of dementia. Due to the side effects of commonly used acetylcholinesterase inhibitors, studies aimed at discovering new
Hatice Duran
doaj   +3 more sources

Photochemical Redox Cycling of Naphthoquinones Mediated by Methylene Blue and Pheophorbide A

Molecules
The photoreduction of plastoquinone, a para-benzoquinone, by chlorophyll initiates photosynthesis in chloroplasts. The direct photoreduction of biologically relevant quinones by dietary chlorophyll metabolites has been reported and may influence health ...
Lisa M. Landino, Joseph A. Reed
doaj   +1 more source

Optimization of 2,6-Dimethoxy Benzoquinone Production through Wheat Germ Fermentation by Saccharomyces cerevisiae

Applied Food Biotechnology, 2020
Background and objective: Nowadays, anticancer effects of 2,6 dimethoxy benzoquinone are verified. Optimization of 2,6 dimethoxy benzoquinone content of fermented wheat germ extract was carried out by investigating effects of the various effective ...
Mahtab Parsazad, Valiollah Babaeipour, Narges MalekSabet, Jafar Mohammadian, Mohammadreza Masoumian   +4 more
doaj   +1 more source

Applications of the Conceptual Density Functional Theory Indices to Organic Chemistry Reactivity [PDF]

, 2016
Indexación: Web of ScienceTheoretical reactivity indices based on the conceptual Density Functional Theory (DFT) have become a powerful tool for the semiquantitative study of organic reactivity.
Domingo, Luis R., Pérez, Patricia, Ríos-Gutiérrez, Mar   +2 more
core   +2 more sources

Synthesis of Nitroxide-Annulated Carbocycles and Heterocycles [PDF]

, 2012
New, pyrroline nitroxide annulated lactones, polycycles, and maleimide were synthesized by classical and microwave-assisted methodology. We report the application of the metathesis reaction in the presence of nitroxide yielding a pyrroline nitroxide ...
Berente, Zoltán, Bognár, Balázs, Hideg, Kálmán, Kálai, Tamás, Zsolnai, Dániel   +4 more
core   +1 more source

N-(3,6-Dimethoxy-2-nitrophenyl)acetamide

Molbank
1,4-Dimethoxy-2,3-dinitrobenzene (1) reduction using sodium hydrosulfite resulted in 3,6-dimethoxybenzene-1,2-diamine (2) and 3,6-dimethoxy-2-nitroaniline (3) in 24% and 59% yields, respectively. Nitroaniline 3 was acetylated with acetyl chloride to give
Lina A. Al-Dulaimi, Joseph C. Bear, Jeremy K. Cockcroft, Giuseppe Trigiante, Fawaz Aldabbagh   +4 more
doaj   +1 more source

The anti-staphylococcal activity (planktonic and biofilm) of Cnestis ferruginea is due to benzoquinone, the oxidation product of hydroquinone

Frontiers in Cellular and Infection Microbiology
IntroductionCnestis ferruginea is used frequently in African traditional medicine for treating infectious diseases. Previous bioassay-guided purification has identified hydroquinone as the major bio-active compound in the aforementioned plant ...
Sujogya Kumar Panda, Sujogya Kumar Panda, Michelle Reynders, Purity N. Kipanga, Walter Luyten   +4 more
doaj   +1 more source

Biosensing firefly luciferin synthesis in bacteria reveals a cysteine-dependent quinone detoxification route in Coleoptera

Scientific Reports, 2022
Luciferin biosynthetic origin and alternative biological functions during the evolution of beetles remain unknown. We have set up a bioluminescent sensing method for luciferin synthesis from cysteine and benzoquinone using E.
Daniel Rangel de Souza, Jaqueline Rodrigues Silva, Ariele Moreira, Vadim R. Viviani   +3 more
doaj   +1 more source