Phytochemistry p. 2053 - 2056 (1987)
Update date:2022-08-25
Topics:
Okuda, Takuo
Hatano, Tsutomu
Kaneda, Tamami
Yoshizaki, Masao
Shingu, Tetsuro
Key Word Index - Liquidambar formosana; Hamamelidaceae; tannin; hydrolysable tannin; ellagitannin; liquidambin; equilibration; biogenesis; casuarinin; pedunculagin. A new ellagitannin, named liquidambin, which could be biogenetically closely correlated with casuarinin and pedunculagin, has been isolated from the leaves of Liquidambar formosana.Its structure was determined as 5-O-galloyl-2,3,4,6-di-O-(S)-hexahydroxydiphenoyl-D-glucose.The structural equilibration due to hydration of the aldehyde group of the glucose core in this tannin was shown from its (1)H and (13)C NMR spectra.
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