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1 H and 13 C NMR assignments for two oxaphenalenones bacillosporin C and D from the mangrove endophytic fungus SBE‐14
Author(s) -
Guo Zhiyong,
Shao Changlun,
She Zhigang,
Cai Xiaoling,
Liu Fan,
Vrijimoed L. L. P.,
Lin Yongcheng
Publication year - 2007
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1976
Subject(s) - chemistry , mangrove , stereochemistry , carbon 13 nmr , two dimensional nuclear magnetic resonance spectroscopy , proton nmr , natural product , fungus , botany , ecology , biology
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.