Oenothein B, a dimeric, hydrolysable tannin with macrocyclic structure, and accompanying tannins from Oenothera erythrosepala

Tsutomu Hatano, Taeko Yasuhara, Muneto Matsuda, Kazufumi Yazaki, Takashi Yoshida, Takuo Okuda

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Abstract

A new dimeric, hydrolysable tannin which we have named oenothein B (1), and eight accompanying compounds, including oenothein C (2), were isolated from the leaves of Oenothera erythrosepala. The macrocyclic structure of compound (1) was established from chemical and spectroscopic data. The previously assigned structure of compound (2) was also confirmed by two-dimensional NMR spectroscopy.

Original languageEnglish
Pages (from-to)2735-2743
Number of pages9
JournalJournal of the Chemical Society, Perkin Transactions 1
Issue number10
Publication statusPublished - 1990

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ASJC Scopus subject areas

  • Chemistry(all)

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