Journal
JOURNAL OF NATURAL PRODUCTS
Volume 80, Issue 1, Pages 210-214Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jnatprod.6b00831
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Funding
- NSERC
- FRQNT
- PROTEO
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Chemical investigation of the methanol extract of the lichen Stereocaulon paschale collected in Nunavik, Canada, led to the isolation and identification of two new dibenzofurans (1 and 3) and 11 known lichen metabolites. The structures of the new compounds were established by analysis of 1D and 2D NMR spectroscopic and high-resolution mass spectrometric data. Herein, the first isolation of ascomatic acid dibenzofuran derivatives (1-3) from a whole lichen organism is reported. In addition, some of the isolated metabolites showed antibacterial activity against the oral pathogens Porphyromonas gingivalis and Streptococcus mutans.
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