Journal
MAGNETIC RESONANCE IN CHEMISTRY
Volume 52, Issue 6, Pages 306-309Publisher
WILEY-BLACKWELL
DOI: 10.1002/mrc.4065
Keywords
NMR; H-1 NMR; C-13 NMR; Indole-diterpenoids; Penicillium sp
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Two new indole-diterpenoids 4b-deoxy-1-O-acetylpaxilline (1) and 4b-deoxypenijanthine A (2) were isolated from the fermentation broth and the mycelia of the soil fungus Penicillium sp. CM-7, along with three known structurally related compounds, 1-O-acetylpaxilline (3), paspaline (4) and 3-deoxo-4b-deoxypaxilline (5). The structures of compounds 1 and 2 were elucidated by extensive spectroscopic methods, especially 2D NMR, and their absolute configurations were suggested on the basis of the circular dichroism spectral analysis and the NOESY data. Copyright (c) 2014 John Wiley & Sons, Ltd.
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