Results 21 to 30 of about 26,979 (280)
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 +3 more
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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 +3 more
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QUINONES FROM THE SEEDS OF IRIS SPURIA VAR. HALOPHILA [PDF]
Bulletin of Pharmaceutical Sciences. Assiut University, 1995 From the seeds of Iris spuria var. halophila, 3 quinones were isolated. On the basis of spectroscopic methods and chemical evidence, the quinones were shown to be primin (2-methoxy, 6-pentyl benzoquinone), dehydroirisoquin (2-hydroxy, 3-octadecenyl, 5 ...
Omar Abdallah +3 more
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Authentication of 2-(4'-chlorophenyl)-1,4-benzoquinone
, 2019 Authentication of 2-(4'-chlorobiphenyl)-1,4-benzoquinone by GC-MS. This compound was synthesized from 1,4-benzoquinone adn diazotized 4-chloroaniline using the Meerwein arylation reactions as described previously.
Hans-Joachim Lehmler (6641066) +1 more
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An Oxidative Dearomatization Approach to Tetrodotoxin via a Masked ortho-Benzoquinone
, 2021 Progress toward a stereoselective synthesis of tetrodotoxin (TTX) is presented. Oxidative dearomatization of a tetrasubstituted guaiacol arene yielded a masked ortho-benzoquinone that intercepted an acyl nitroso species generated in situ by the copper ...
Jeffrey S. Johnson (1312380) +1 more
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Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity
German Journal of Pharmaceuticals and BiomaterialsThe 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
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Photochemical Redox Cycling of Naphthoquinones Mediated by Methylene Blue and Pheophorbide A
MoleculesThe 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
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, 2016 The structure and energetics of protonated p-benzoquinone (pBQ) have been investigated using high-pressure mass spectrometry and ab initio calculations.
Andrew D. Fant (3036162) +4 more
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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 +4 more
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N-(3,6-Dimethoxy-2-nitrophenyl)acetamide
Molbank1,4-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 +4 more
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