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Tannins and related compounds. LII Studies on the constituents of the leaves of Thujopsis dolabrata SIEB. et ZUCC.
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1987
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Bioorganic ChemistryLii StudiesBotanyBiochemistryThujopsis Dolabrata SiebNatural SciencesMedicineGlycobiologyTanninNew Flavanonol GlycosidesThirteen Oligomeric ProcyanidinsPhytopharmacologyPhytochemicalRelated CompoundsPhytochemistryPharmacologyPlant Physiology
From the leaves of Thujopsis dolabrata SIEB. et Zucc. (Cupressaceae), four new flavanonol glycosides, the 3-O-β-D-xylopyranosides (1→4) of (+) -taxifolin, (-) -taxifolin, (+) -epitaxifolin and (-) -epitaxifolin, together with (+) -catechin (5), (-) -epicatechin (6) and thirteen oligomeric procyanidins (7-19), were isolated and their chemical structures were characterized by spectroscopic and chemical investigations.