35154-48-4Relevant academic research and scientific papers
Evaluation of resveratrol derivatives as potential antioxidants and identification of a reaction product of resveratrol and 2,2-diphenyl-1- picryhydrazyl radical
Wang, Mingfu,Jin, Yi,Ho, Chi-Tang
, p. 3974 - 3977 (1999)
Resveratrol (3,4',5-trihydroxy-trans-stilbene), an antioxidant from grapes, and five other polyhydroxystilbenes were synthesized. Their antioxidative properties were evaluated in two model systems [pure lipid oxidation using the Rancimat method and 2,2-diphenyl-1-picryhydrazyl (DPPH) free radical scavenging model.] 3,3',4,5'-Tetrahydroxystilbene, 3,3',4,5,5'- pentahydroxystilbene, and 3,4,4',5-tetrahydroxystilbene were found to be more active than resveratrol in both models. A dimer of resveratrol was identified as the major radical reaction product when resveratrol was reacted with DPPH radicals.
Synthesis of resveratrol derivatives as new analgesic drugs through desensitization of the TRPA1 receptor
Nakao, Syuhei,Mabuchi, Miyuki,Wang, Shenglan,Kogure, Yoko,Shimizu, Tadashi,Noguchi, Koichi,Tanaka, Akito,Dai, Yi
, p. 3167 - 3172 (2017/06/13)
A series of 31 resveratrol derivatives was designed, synthesized and evaluated for activation and inhibition of the TRPA1 channel. Most acted as activators and desensitizers of TRPA1 channels like resveratrol or allyl isothiocyanate (AITC). Compound 4z (HUHS029) exhibited higher inhibitory activity than resveratrol with an IC50 value of 16.1?μM. The activity of 4z on TRPA1 was confirmed in TRPA1-expressing HEK293 cells, as well as in rat dorsal root ganglia neurons by a whole cell patch clamp recording. Furthermore, pretreatment with 4z exhibited an analgesic effect on AITC-evoked TRPA1-related pain behavior in vivo.
CAJANINE STRUCTURE ANALOGOUS COMPOUND, PREPARATION METHOD AND USE
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Paragraph 0245, (2014/11/13)
Provided are cajanine structure analogous compounds, synthesis method and pharmacological effects thereof, the compounds of the present invention having the structure as represented by general formulas I, II, III, IV and V. Also provided are pharmaceutical compositions containing the compounds as active ingredient, and uses thereof; the compounds of the present invention having the pharmacological activities such as anti-virus, anti-virus-infection, nerve protection, anti-metabolic-diseases and the like. Also provided is a chemical total synthesis preparation method of the natural products cajanine, cajanine A and cajanine C. The present invention lays a foundation for the in-depth study and development of the compounds as clinical drugs in the future.
CAJANINE STRUCTURE ANALOGOUS COMPOUND, PREPARATION METHOD AND USE
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Paragraph 0086; 0256, (2015/01/06)
Provided are cajanine structure analogous compounds, synthesis method and pharmacological effects thereof, the compounds of the present invention having the structure as represented by general formulas I, II, III, IV and V. Also provided are pharmaceutical compositions containing the compounds as active ingredient, and uses thereof; the compounds of the present invention having the pharmacological activities such as anti-virus, anti-virus-infection, nerve protection, anti-metabolic-diseases and the like. Also provided is a chemical total synthesis preparation method of the natural products cajanine, cajanine A and cajanine C. The present invention lays a foundation for the in-depth study and development of the compounds as clinical drugs in the future.
STILBENE DERIVATIVES AND THEIR USE IN MEDICAMENTS
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Page/Page column 7, (2008/06/13)
The invention relates to stilbene derivatives of general formula (I), in which at least four of the substituents R1 to R6 do not represent hydrogen. The substituents are effective radical captors, anti-tumour active ingredients and s
Resveratrol analogues as selective cyclooxygenase-2 inhibitors: Synthesis and structure-activity relationship
Murias, Marek,Handler, Norbert,Erker, Thomas,Pleban, Karin,Ecker, Gerhard,Saiko, Philipp,Szekeres, Thomas,J?ger, Walter
, p. 5571 - 5578 (2007/10/03)
A series of hydroxylated and methoxylated trans-stilbenes were synthesized and evaluated for their ability to inhibit COX-1 and COX-2. Some of the hydroxylated derivatives are highly selective COX-2 inhibitor with potency comparable or better than clinically established drugs. Resveratrol (3,5,4′-trihydroxy-trans-stilbene) is found in grapes and various medical plants. Among cytotoxic, antifungal, antibacterial cardioprotective activity resveratrol also demonstrates non-selective cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) inhibition. In order to find more selective COX-2 inhibitors a series of methoxylated and hydroxylated resveratrol derivatives were synthesized and evaluated for their ability to inhibit both enzymes using in vitro inhibition assays for COX-1 and COX-2 by measuring PGE2 production. Hydroxylated but not methoxylated resveratrol derivatives showed a high rate of inhibition. The most potent resveratrol compounds were 3,3′,4′,5-tetra-trans-hydroxystilbene (COX-1: IC50 = 4.713, COX-2: IC50 = 0.0113 μM, selectivity index = 417.08) and 3,3′,4,4′,5,5′-hexa-hydroxy-trans-stilbene (COX-1: IC 50 = 0.748, COX-2: IC50 = 0.00104 μM, selectivity index = 719.23). Their selectivity index was in part higher than celecoxib, a selective COX-2 inhibitor already established on the market (COX-1: IC 50 = 19.026, COX-2: IC50 = 0.03482 μM, selectivity index = 546.41). Effect of structural parameters on COX-2 inhibition was evaluated by quantitative structure-activity relationship (QSAR) analysis and a high correlation was found with the topological surface area TPSA (r = 0.93). Docking studies on both COX-1 and COX-2 protein structures also revealed that hydroxylated but not methoxylated resveratrol analogues are able to bind to the previously identified binding sites of the enzymes. Hydroxylated resveratrol analogues therefore represent a novel class of highly selective COX-2 inhibitors and promising candidates for in vivo studies.
Hydroxystilbene compounds for reducing/inhibiting protein glycation
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, (2008/06/13)
The hydroxystilbenes are well suited for reducing or inhibiting the glycation of certain substrates, for example the proteins of nails and/or hair, advantageously to preventatively and/or curatively combat glycation-related aging of the nails/hair.
