Subelliptenone G - CAS 162473-22-5
Catalog number: 162473-22-5
Not Intended for Therapeutic Use. For research use only.
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Subelliptenone G is a natural xanthone found in the herbs of Garcinia hanburyi Hook.f.
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1.[Chemical constituents from barks of Garcinia tetralata].
Wang LL;Li ZL;Hua HM;Liu XQ Zhongguo Zhong Yao Za Zhi. 2008 Oct;33(20):2350-2.
OBJECTIVE: ;To study the chemical constituents of the barks of Garcinia tetralata.;METHOD: ;Compounds were isolated and purified repeatedly by silica gel and ODS column chromatography and their chemical structures were elucidated by their physicochemical properties and spectral data analysis.;RESULT: ;Ten compounds were obtained and identified as 1, 7-dihydroxyxanthone (1), buchanaxanthone (2), garciniaxanthone H (3), 1, 2, 5-trihydroxyxanthone (4), subelliptenone H (5), 6-desoxyjacareubin (6), 6-deoxyisojacreubin (7), subelliptenone G (8), methyl orsellinate (9) and beta-sitosterol (10).;CONCLUSION: ;Compounds 1-10 were isolated from this plant and compound 9 was obtained from the genus Garcinia for the first time.
2.2-Phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide Radical (PTIO•) Trapping Activity and Mechanisms of 16 Phenolic Xanthones.
Li X;Chen B;Zhao X;Chen D Molecules. 2018 Jul 11;23(7). pii: E1692. doi: 10.3390/molecules23071692.
This study used the 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide radical (PTIO•) trapping model to study the antioxidant activities of 16 natural xanthones in aqueous solution, including garcinone C, γ-mangostin, subelliptenone G, mangiferin, 1,6,7-trihydroxy-xanthone, 1,2,5-trihydroxyxanthone, 1,5,6-trihydroxyxanthone, norathyriol, 1,3,5,6-tetrahydroxy-xanthone, isojacareubin, 1,3,5,8-tetrahydroxyxanthone, isomangiferin, 2-hydroxyxanthone, 7-;O;-methylmangiferin, neomangiferin, and lancerin. It was observed that most of the 16 xanthones could scavenge the PTIO• radical in a dose-dependent manner at pH 4.5 and 7.4. Among them, 12 xanthones of the ;para;-di-OHs (or ;ortho;-di-OHs) type always exhibited lower half maximal inhibitory concentration (IC;50;) values than those not of the ;para;-di-OHs (or ;ortho;-di-OHs) type. Ultra-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (UPLC-ESI-Q-TOF-MS/MS) analysis revealed that most of these xanthones gave xanthone-xanthone dimers after incubation with PTIO•, except for neomangiferin. Based on these data, we concluded that the antioxidant activity of phenolic xanthone may be mediated by electron-transfer (ET) ;plus; H⁺-transfer mechanisms.
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CAS 162473-22-5 Subelliptenone G

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