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4(S)-(6-O-Caffeoyl-β-d-glucopyranosyl)-2-pentanone from young leaves ofPhotinia glabra

Authors
Journal
Phytochemistry
0031-9422
Publisher
Elsevier
Publication Date
Volume
32
Issue
2
Identifiers
DOI: 10.1016/s0031-9422(00)94993-8
Keywords
  • Photinia Glabra
  • Rosaceae
  • Leaves
  • 2-Oxo(S)-Pentanol
  • Caffeoyl-Glucoside
  • 2-Oxo4(S)-Pentanol-Glucoside
  • (S)-(6-O-Caffeoyl-β-D-Glucopyranosyl)-2-Pentanone
Disciplines
  • Chemistry

Abstract

Abstract 13C NMR analysis of hot water extracts from young leaves of Photinia glabra gave prominent signals unassignable to any known components. Guided by the characteristic 13C NMR signals, a new glucoside ester was isolated. The structure of this compound was determined to be 4( S)- O-(6- O-caffeoyl-β- d-glucopyranosyl)-2-pentanone by 1H and 13C NMR analyses and other chemical evidence.

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