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Abstract
Chemical investigation of Aspergillus japonicus CAM231, isolated from the leaf of Garcina preussii collected in Cameroon, yielded two new compounds; one pyrone derivative, hydroxy neovasinin (1) and one phenol derivative, asperolan (2), together with two known compounds neovasifurarone B (3) and variecolin (4). The structures of the two new compounds were established using intensive NMR spectroscopy and HRMS spectra in comparison with data found in literature. The structure of compound 1 was confirmed by single-crystal X-ray crystallographic analysis in combination with NOESY experiment. The new compounds were screened for their cytotoxic and antibacterial properties; however, the tested compounds displayed no significant activities.
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