- Production method of 2,3,4,4'-tetrahydroxy benzophenone
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The invention discloses a production method of 2,3,4,4'-tetrahydroxy benzophenone.Uniformly mixing pyrogallic acid, p-hydroxybenzoic acid, water and functionalized magnetic silica gel loaded biimidazole ionic liquid in a reaction container, stirring, heat
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Paragraph 0020-0059
(2019/06/30)
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- 2,3,4,4'-tetrahydroxy benzophenone preparation method
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The invention discloses a 2,3,4,4'-tetrahydroxy benzophenone preparation method. The method includes: under a solvent-free condition, catalyzing an acylation reagent and pyrogallic acid in concentrated sulfuric acid; feeding inert gas to allow hermetical
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Paragraph 0032-0037
(2017/10/31)
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- Method for preparing 2,3,4,4' tetrahydroxy diphenyl ketone at normal pressure
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The invention discloses a method for preparing 2,3,4,4' tetrahydroxy diphenyl ketone at normal pressure. An acylation reagent, pyrogallic acid, a catalyst and isoamyl alcohol are mixed in a reactor, inert gas is introduced, a reaction is carried out in th
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Paragraph 0030; 0031; 0032; 0033; 0034; 0035
(2017/12/01)
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- Evaluation of polyhydroxybenzophenones as α-glucosidase inhibitors
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This experiment was designed to synthesize 18 kinds of polyhydroxybenzophenones by using Friedel-Crafts reaction, and to measure the inhibitory activity on α-glucosidase with p-nitrophenyl-β-D- galactopyranoside (PNPG) as a substrate. Here, acarbose (IC50a= a1674.75aaμmolaL-1) was used as the reference inhibitor. The results demonstrated that most of the target compounds had remarkable inhibitory activities on α-glucosidase. Among all these compounds, 2,4,4′,6-butahydroxydiphenylketone (11) was found to be the most potent α-glucosidase inhibitor with an IC50 value of 10.62aaμmolaL-1. In addition, we found these compounds were competitive inhibitors through the kinetic analysis. The results suggested that such compounds might be utilized for the development of new candidates for diabetes treatment. A series of polyhydroxybenzophenones was synthesized and evaluated as α-glucosidase inhibitors. Compound 11 was found to be the most potent inhibitor. Copyright
- Hu, Xuesen,Xiao, Yang,Wu, Jianlong,Ma, Lin
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experimental part
p. 71 - 77
(2011/09/21)
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- Synthesis and biological evaluation of polyhydroxy benzophenone as mushroom tyrosinase inhibitors
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A series of polyhydroxy benzophenone were synthesized and evaluated as mushroom tyrosinase inhibitors. The results demonstrated that most of the target compounds had remarkable inhibitory activities on mushroom tyrosinase. Among all these compounds, 2,3,4,3′,4′,5′-hexahydroxy-diphenylketone 10 was found to be the most potent tyrosinase inhibitor with IC50 value of 1.4 μM. In addition, the inhibition kinetics analyzed by Lineweaver-Burk plots revealed that such compounds were competitive inhibitors. These results suggested that such compounds might be utilized for the development of new candidate for treatment of dermatological disorders.
- Wu, Jianlong,Hu, Xuesen,Ma, Lin
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experimental part
p. 449 - 452
(2012/01/04)
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