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1 H and 13 C NMR assignments for 6‐demethylvermistatin and two penicillide derivatives from the mangrove fungus Guignardia sp. (No. 4382) from the South China Sea
Author(s) -
Xia Xuekui,
liu Fan,
She Zhigang,
Yang Liguo,
Li Mengfeng,
Vrijmoed L. L. P.,
Lin Yongcheng
Publication year - 2008
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.2216
Subject(s) - chemistry , mangrove , china , stereochemistry , proton nmr , ecology , archaeology , history , biology
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.