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Structure elucidation and NMR spectral assignment of five new xanthones from the bark of Garcinia xanthochymus

✍ Scribed by Yu Chen; Fangfang Zhong; Hongwu He; Yun Hu; Dan Zhu; Guangzhong Yang

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
108 KB
Volume
46
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Five new xanthones, namely Garcinexanthones A–E (1–5), were isolated from the barks of Garcinia xanthochymus. Their structures were elucidated by spectral analysis, primarily NMR, MS, and UV. The complete assignments of the ^1^H NMR and ^13^C NMR chemical shifts for the compounds were achieved by using 1D and 2D NMR techniques, including DEPT, HSQC, and HMBC NMR experiments. Copyright © 2008 John Wiley & Sons, Ltd.

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