Constituents of a fern, Davallia mariesii Moore. II. Identification and 1H- and 13C-nuclear magnetic resonance spectra of procyanidin B-5, epicatechin-(4 beta----8)-epicatechin-(4 beta----6)-epicatechin, and epicatechin-(4 beta----6)-epicatechin-(4 beta----8)-epicatechin-(4 beta----6)-epicatechin

Chem Pharm Bull (Tokyo). 1992 Apr;40(4):889-98. doi: 10.1248/cpb.40.889.

Abstract

Procyanidin B-5 (1), epicatechin-(4 beta----8)-epicatechin-(4 beta----6)-epicatechin (2), and epicatechin-(4 beta----6)-epicatechin-(4 beta----8)-epicatechin-(4 beta----6)-epicatechin (3), which showed an inhibitory effect toward protein kinase C, were isolated from the rhizomes of Davallia mariesii Moore. Detailed analyses of their 1H- and 13C-nuclear magnetic resonance spectra were carried out by the use of two-dimensional nuclear magnetic resonance techniques.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biflavonoids*
  • Carbohydrate Sequence
  • Carbon Isotopes
  • Catechin / chemistry*
  • Catechin / isolation & purification
  • Magnetic Resonance Spectroscopy / methods
  • Medicine, Chinese Traditional
  • Molecular Sequence Data
  • Plants, Medicinal / chemistry*
  • Proanthocyanidins*
  • Spectrum Analysis / methods

Substances

  • Biflavonoids
  • Carbon Isotopes
  • Proanthocyanidins
  • procyanidin B
  • procyanidin
  • Catechin