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Structure Elucidation and Complete NMR Spectral Assignments of New Sesquiterpenes Isolated From Marine Derived Fungus Aspergillus sydowii-HB

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Six sesquiterpene derivative compounds (1-6), including one new 7R-sydowic acid (1) and five known compounds (2-6) were isolated from the secondary metabolites of Aspergillus sydowii-HB. The structures were determined by NMR spectroscopy and ESI-MS analysis, a... ...