150258-78-9Relevant academic research and scientific papers
Dimerization of piceatannol by Momordica charantia peroxidase and α-glucosidase inhibitory activity of the biotransformation products
Wan, Xiang,Wang, Xiao-Bing,Yang, Ming-Hua,Wang, Jun-Song,Kong, Ling-Yi
, p. 5085 - 5092 (2011)
Stilbenes, especially those oligomers, have great potential to be antihyperglycemic agents. In this study, eight stilbene dimers, including five new ones, were obtained by biotransformation of piceatannol using Momordica charantia peroxidase (MCP) for the first time. Their structures were established on the basis of spectroscopic evidences. These piceatannol dimers displayed potential α-glucosidase inhibitory activities, and trans double bond, tetrahydrofuran ring, and free adjacent phenolic dihydroxyls were found to be important for their activities. Enzymatic biotransformation of stilbenes by M. charantia peroxidase (MCP) was showed to be a prominent way to produce oligomeric stilbenes for antihyperglycemic development.
Synthetic method for piceatannol derivatives and pharmaceutical compounds containing the piceatannol derivatives
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Paragraph 0023; 0031; 0032, (2017/10/31)
The piceatannol derivatives were easily synthesized using a Wittig-Horner reaction, a Colvin rearrangement and a Sonogashira reaction. According to the result of investigating the anti-inflammatory activity of compounds synthesized in RAW264.7 macrophages induced by LPS, compounds 6 to 8 showed remarkable activity at the concentration of 10 andmu;M, and a compound 7 (90.1%), a compound 8 (60.8%) and a compound 6 (55.2%) showed no cytotoxicity. The present invention aims to provide a method for efficiently synthesizing the piceatannol derivatives and to confirm the biological activity of synthesized piceatannol derivatives.COPYRIGHT KIPO 2017
Synthesis and Protein-Tyrosine Kinase Inhibitory Activity of Polyhydroxylated Stilbene Analogues of Piceatannol
Thakkar, Kshitij,Geahlen, Robert L.,Cushman, Mark
, p. 2950 - 2955 (2007/10/02)
A series of hydroxylated trans-stilbene related to the antileukemic natural product trans-3,3',4,5'-tetrahydroxy stilbene (piceatannol) (1) has been prepared and tested for inhibition of the lymphoid cell lineage-specific protein-tyrosine kinase p56lck, which plays an important role in lymphocyte proliferation and immune function.A number of the analogues displayed enhanced enzyme inhibitory activity relative to the natural product.Reduction of the double bond bridging the two aromatic rings and benzylation of the phenolic hydroxyl groups was found to decrease activity significantly.The most potent compounds in the series proved to be trans-3,3',5,5'-tetrahydroxystilbene, trans-3,3',5-trihydroxystilbene, and trans-3,4,4'-trihydroxystilbene.
