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  • Title: 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.
    Author: Xia XK, Liu F, She ZG, Yang LG, Li MF, Vrijmoed LL, Lin YC.
    Journal: Magn Reson Chem; 2008 Jul; 46(7):693-6. PubMed ID: 18338749.
    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.
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