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Puerins A and B, two new 8-C substituted flavan-3-ols from Pu-er tea.
Chemical investigation led to the identification of two new 8-C substituted flavan-3-ols, puerins A and B, and two known cinchonain-type phenols, epicatechin-[7,8-bc]-4alpha-(4-hydroxyphenyl)-dihydro-2(3H)-pyranone and cinchesonain Ib.
New flavonoid glycosides from Scutellaria amoena
Abstract Three new flavonoid glycosides, 5,7,2′-trihydroxy-6-methoxyflavone 7-O-β-D-glucuronide methyl ester, 5,7,2′-trihydroxy-6-methoxyflavone 7-O-β-D-glucoside and 5,7,2′,6′-tetrahyroxyflavonol
A new ellagic acid derivative from Polygonum runcinatum
A new ellagic acid derivative, 3,3′-dimethylellagic acid-4′-O-(6″-galloyl)-β-d-glucoside, named runcinatside, together with four known compounds, showed antioxidant activities in vitro and compound 5 possessed the highest activity.
[Chemical constituents of Aconitum bulleyanum].
Analysis of chloroform fraction from Aconitum bulleyanum reveals compounds 2-7 are isolated from this plant for the first time.
Purification and characterization of four benzophenone derivatives from Mangifera indica L. leaves and their antioxidant, immunosuppressive and α-glucosidase inhibitory activities
Abstract The aim of the present study was to isolate phytochemicals from Mangifera indica L. leaves and to screen their bioactivities. Four benzophenone derivatives were isolated and characterized,
A new taxane diterpenoid from Taxus chinensis var. mairei
Six known compounds including two taxane diterpenoids and four flavonoids were isolated from the whole seedling of the Taxus chinensis var.
A New Immunosuppressive Pregnane Glycoside and Two Known Analogues from Epigynum cochinchinensis
Phytochemical investigation of the ethyl acetate soluble fraction from the leaves of Epigynum cochinchinensis led to the isolation of one new C21 pregnane glycoside, epigycoside C (1), along with two
New norditerpenoid alkaloids from Aconitum vilmorinianum Komarov
Vilmorrianine E is the first known norditerpenoid alkaloid containing both an imine group and a three-membered ring formed by C8, C9, and C10.
Sweritranslactones A-C: Unusual Skeleton Secoiridoid Dimers via [4 + 2] Cycloaddition from Swertiamarin.
The application of phytochemical methods to iridoids yielded three novel secoiridoid dimers: sweritranslactones A-C (1-3), which possess a 6-fused hexacyclic skeleton and were established based on extensive spectroscopic characterization and X-ray crystallographic diffraction analysis.
Two new chalcones from Shuteria sinensis
Two new chalcones and two known compounds, munsericin and 3,4-dihydroxylonchocarpin, were isolated from the ethanol extract of the whole plant of Shuteria sinensis and showed effect on the glucose consumption of insulin-resistant HepG2 cells.