The natural grassland in China is facing increasingly serious degradation. L., as an important native alpine grass, is widely used in the restoration and improvement of natural grassland.
View Article and Find Full Text PDFMarine-derived fungi are considered to be valuable producers of bioactive secondary metabolites used as lead compounds with medicinal importance. In this study, chemical investigation of the seawater-derived fungus SW9 led to the isolation and identification of one new quinazolinone alkaloid, 2-(4-hydroxybenzyl)-4-(3-acetyl)quinazolin-one (), one new aromatic bisabolene-type sesquiterpenoid, () and one new chorismic acid analogue (), as well as two known alkaloids (compounds and ). Their structures were determined by extensive 1D/2D NMR and mass spectrometric data, and the absolute configurations of and were assigned by the analysis of ECD spectra aided by quantum chemical computations.
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