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1H and 13C NMR assignments for 6-demethylvermistatin and two penicillide derivatives from the mangrove fungus Guignardia sp. (No. 4382) from the South China Sea

✍ Scribed by Xue-kui Xia; Fan liu; Zhi-gang She; Li-guo Yang; Meng-feng Li; L. L. P. Vrijmoed; Yong-cheng Lin

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

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✦ Synopsis

Abstract

One new compound 6‐demethylvermistatin (1), together with two known compounds, the penicillide derivatives (2) and (3) were isolated from the mangrove fungus Guignardia sp. No. 4382 obtained from the South China Sea. Their structures were assigned using high‐resolution electron ionization mass spectrometry(HREIMS), ^1^H and ^13^C NMR spectra, DEPT, and by 2D COSY, HMQC, and HMBC experiments. The absolute configuration of 1 was established by comparison of its CD with that of vermistatin. Copyright © 2008 John Wiley & Sons, Ltd.

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