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Structural characterization of a procyanidin tetramer and pentamer from the apple by low-temperature NMR analysis

✍ Scribed by Yutaka Abe; Toshihiko Shoji; Nobuo Kawahara; Hiroyuki Kamakura; Tomomasa Kanda; Yukihiro Goda; Yoshihiro Ozeki

Publisher: Elsevier Science
Year: 2008
Tongue: French
Weight: 969 KB
Volume: 49
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2008.08.087

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✦ Synopsis

The structures of a procyanidin tetramer and pentamer from unripe apple (Malus pumila) were elucidated by low-temperature NMR analysis at À34 °C. These structures were [epicatechin-(4b?6)-epicatechin-(4b?8)-epicatechin-(4b?8)-epicatechin (1)] and [epicatechin-(4b?8)-epicatechin-(4b?8)-epicatechin-(4b?8)-epicatechin-(4b?8)-epicatechin (2)].

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