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Electrospray ionization and collision-induced dissociation tandem mass spectrometric discrimination of polyphenolic glycosides: exact acylation site determination of the O-acylated monosaccharide
  • S. Liao, L. Zhang, +6 authors Y. Wang
  • Chemistry, Medicine
  • Rapid communications in mass spectrometry : RCM
  • 15 November 2012
RATIONALE Acylated monosaccharide residues are structural subunits of natural products or synthetic intermediates that have received much attention in past years. Determination of the acylation sitesExpand
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UPLC-PDA-ESI-MS/MS analysis of compounds extracted by cardiac h9c2 cell from Polygonum orientale.
INTRODUCTION A flavonoid-enriched extract (FEE) of Polygonum orientale was reported to show cardioprotective effect but only very few compounds were reported to contribute to the effect.Expand
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[Studies on chemical constituents in herb of Polygonum orientale].
OBJECTIVE To study the chemical constituents of the essential substance from Polygonum oriental. METHOD Compounds were isolated with silica gel and polyamide chromatography and their structuresExpand
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Identification and characterisation of phenolics in Polygonum capitatum by ultrahigh-performance liquid chromatography with photodiode array detection and tandem mass spectrometry.
INTRODUCTION Polygonum capitatum is a well-known Chinese medicinal plant widely used by the Miao people for the treatment of various urologic disorders. Previous investigations have shown theExpand
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A UPLC-MS/MS Method for Simultaneous Determination of Free and Total Forms of a Phenolic Acid and Two Flavonoids in Rat Plasma and Its Application to Comparative Pharmacokinetic Studies of Polygonum
The principal active constituents of Polygonum capitatum are phenolic acids and flavonoids, such as gallic acid, quercitrin, and quercetin. The aim of this study was to develop and validate a methodExpand
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Two new phenolic glycosides from Inula cappa
Two new phenolic glycosides, syringic acid-4-O-α-L-rhamnoside (1) and ( − )-hydnocarpin-7-O-β-D-glucoside (2), were isolated from the traditional Chinese medicinal herb Inula cappa. The structures ofExpand
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[Separation and purification technology of main active composition of Hongye Xingtong soft capsules with macroporous resin].
  • L. Ma, Y. Wang, +4 authors Y. Huang
  • Chemistry, Medicine
  • Zhongguo Zhong yao za zhi = Zhongguo zhongyao…
  • 1 March 2008
OBJECTIVE To study the technical conditions of the extraction and purification of the active composition from Polygonum orientale and Crataegus pinnatifida Bge. in Hongye Xingtong soft capsules withExpand