Camptothins A and B, New Dimeric Hydrolyzable Tannins from Camptotheca acuminata Decne

Tsutomu Hatano, Yukihiko Ikegami, Takuo Okuda, Tetsuro Shingu

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Two new hydrolyzable tannins, named camptothins A (1) and B (4), have been isolated from the leaf of Camptotheca acuminata (Nyssaceae) along with cornusiin A (2), gemin D (3), tellimagrandin I (5), tellimagrandin II (6), l,2,6-tri-O-galloyl-β-D-glucose (7) and 1,2,3,6-tetra-O-galloyl-β-D-glucose (8). Pedunculagin (9) was isolated from the fruit of C. acuminata. The dimeric structures of camptothins A and B have been established based on chemical and spectroscopic evidence.

Original languageEnglish
Pages (from-to)2017-2022
Number of pages6
JournalChemical and Pharmaceutical Bulletin
Volume36
Issue number6
DOIs
Publication statusPublished - Jan 1 1988

Keywords

  • Camptotheca acuminata
  • Nyssaceae
  • camptothin A
  • camptothin B
  • centrifugal partition chromatography
  • cornusiin A
  • dimeric hydrolyzable tannin
  • ellagitannin
  • hydrolyzable tannin
  • tannin

ASJC Scopus subject areas

  • Chemistry(all)
  • Drug Discovery

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