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1H and 13C NMR assignments for two oxaphenalenones bacillosporin C and D from the mangrove endophytic fungus SBE-14

✍ Scribed by Zhiyong Guo; Changlun Shao; Zhigang She; Xiaoling Cai; Fan Liu; L. L. P. Vrijimoed; Yongcheng Lin

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
97 KB
Volume
45
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The complete ^1^H and ^13^C NMR assignments are reported for the novel natural product Bacillosporin D together with the known compound Bacillosporin C. These compounds containing seven rings were isolated from the mangrove endophytic fungus SBE‐14 from the South China Sea. 1D and 2D NMR experiments, including COSY, HMQC and HMBC were used to the determination of the structures and NMR assignments. It is proposed that 1 was biogenetically produced by transforming 2. Transforming a lactone to an anhydride is unusual in nature. Copyright © 2007 John Wiley & Sons, Ltd.

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