Nat Prod Sci.  2016 Mar;22(1):41-45. 10.20307/nps.2016.22.1.41.

Flavonoid Glycosides from the Flowers of Pulsatilla koreana Nakai

Affiliations
  • 1Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin 446-701, Korea. nibaek@khu.ac.kr
  • 2Department of Horticultural Biotechnology, Kyung Hee University, Yongin 446-701, Korea.

Abstract

Extraction and fractionation of Pulsatilla koreana flowers followed by, repeated open column chromatography for EtOAc and n-BuOH fractions yielded four flavonoid glycosides, namely, astragalin (1), tiliroside (2), buddlenoide A (3), and apigenin-7-O-(3"-E-p-coumaroyl)-glucopyranoside (4). The chemical structures of these flavonoid glycosides were elucidated on the basis of various spectroscopic methods including electronic ionization mass spectrometry (EI-MS), 1D NMR (1H, 13C, DEPT), 2D NMR (gCOSY, gHSQC, gHMBC), and infrared (IR) spectrometry. This study represents the first report of the isolation of the flavonoid glycosides from the flowers of P. koreana.

Keyword

Buddlenoide A; Flower; Pulsatilla koreana; Nuclear magnetic resonance; Tiliroside

MeSH Terms

Chromatography
Flowers*
Glycosides*
Magnetic Resonance Spectroscopy
Mass Spectrometry
Pulsatilla*
Spectrum Analysis
Glycosides
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