Preparation of [14C]-Labelled 1,2,3,4,6-Penta-O-Galloyl-β-ᴅ-Glucose and Related Gallotannins

Abstract [U -14C]-Labelled 1,2,3,4,6-penta-O-galloyl-β-ᴅ-glucose was prepared by photoassimilation of 14CO2 with leaves from staghorn sumac (Rhus typhina) in the presence of the herbicide glyphosate. Extracts of the plant material were partitioned against ethyl acetate and chromatographed on Sephadex LH-20, yielding a series of crude tri-to decagalloylglucoses. The pentagalloylglucose fraction among these was further purified by HPLC to >99% purity and a specific radioactivity of 130 kBq (3.5 μCi) per μmol. The ratio of the radioactivities in the glucose and galloyl moieties, respectively, suggested a uniform labelling pattern of the product.

• Publication year

  1996

• Venue

  Zeitschrift für Naturforschung C

• Publication date

  1996-08-01

• Fields of study

  Chemistry, Environmental Science

• Identifiers
  DOI 10.1515/znc-1996-7-804
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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