Tannins and Related Compounds. LXXIX. Isolation and Characterization of Novel Dimeric and Trimeric Hydrolyzable Tannins, Nuphrins C, D, E and F, from Nuphar japonicum DC.

• ISHIMATSU M

  Faculty of Pharmaceutical Sciences, Kyushu University

• TANAKA Takashi

  Faculty of Pharmaceutical Sciences, Kyushu University

• NONAKA Gen-ichiro

  Faculty of Pharmaceutical Sciences, Kyushu University

• NISHIOKA Itsuo

  Faculty of Pharmaceutical Sciences, Kyushu University

• NISHIZAWA Makoto

  Japan and Hokkaido Institute of Public Health

• YAMAGISHI Takashi

  Japan and Hokkaido Institute of Public Health

Abstract

Four novel dimeric and trimeric hydrolyzable tannins, nupharins C (1), D (13), E (15) and F (16), which possess a less favorable α-D-glucopyranose core with an atropisomeric (R)- or (S)-hexahydroxydiphenoyl group at the 3,6-position, have been isolated from the rhizomes of Nuphar japonicum DC. (Nymphaeaceae). The structures of these compounds were established on the basis of spectroscopic and chemical evidence.

Journal

• Chem. Pharm. Bull.

  Chem. Pharm. Bull. 37 1735-1743, 1989

  The Pharmaceutical Society of Japan

Keywords

• Nuphar japonicum
• Nymphaeaceae
• nupharin C-F
• dimeric ellagitannin
• trimeric ellagitannin
• dehydrodigallic acid
• α-D-glucose
• R-, S-hexahydroxydiphenoic acid
• atropisomerism
• diastereomer

Details

• CRID: 1570291227531351680
• NII Article ID: 110003627848
• NII Book ID: AA00602100
• ISSN: 00092363
• Text Lang: en
• Data Source:
  • CiNii Articles