Tannins of cornaceous plants. II. Cornusiins D, E and F, new dimeric and trimeric hydrolyzable tannins from Cornus officinalis

Tsutomu Hatano, Taeko Yasuhara, Takuo Okuda

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Cornusiin D (3), cornusiin E (4) and cornusiin F (5), new dimeric and trimeric hydrolyzable tannins, were isolated from the fruits of Cornus officinalis (Cornaceae), and their structures were established based on the chemical and spectroscopic data. Unusual chemical shifts of vaioneoyl protons and anomeric protons of glucose cores in the proton nuclear magnetic resonance spectra of 3 and 4 were correlated with the stereostructures around the vaioneoyl groups. Camptothin A (6) and camptothin B (7), dimeric hydrolyzable tannins previously isolated from Camptotheca acuminata, were also isolated from the fruits of Cornus officinalis.

Original languageEnglish
Pages (from-to)2665-2669
Number of pages5
JournalChemical and Pharmaceutical Bulletin
Volume37
Issue number10
Publication statusPublished - 1989

Fingerprint

Cornus
Hydrolyzable Tannins
Tannins
Fruits
Protons
Nuclear magnetic resonance
Cornaceae
Camptotheca
Fruit
Chemical shift
Glucose
Magnetic Resonance Spectroscopy

Keywords

  • Camptothin A
  • Camptothin B
  • Cornus officinalis
  • Cornusiin D
  • Cornusiin E
  • Cornusiin F
  • Dimeric hydrolyzable tannin
  • Ellagitannin
  • Tannin
  • Trimeric hydrolyzable tannin

ASJC Scopus subject areas

  • Drug Discovery
  • Chemistry(all)

Cite this

Tannins of cornaceous plants. II. Cornusiins D, E and F, new dimeric and trimeric hydrolyzable tannins from Cornus officinalis. / Hatano, Tsutomu; Yasuhara, Taeko; Okuda, Takuo.

In: Chemical and Pharmaceutical Bulletin, Vol. 37, No. 10, 1989, p. 2665-2669.

Research output: Contribution to journalArticle

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