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Isolated new meroterpenoids and evaluated their antiviral effects in a marine-derived fungus, indicating potential therapeutic applications.
Guignardones Y-Z (1-2), two new meroterpenoids, and six known metabolites involving guignardones A-H (3-4), gyorgy-isoflavone (5), daidzein (6), blumenol A (7) and guignardianone A (8) were isolated from the fungus Penicillium sp. NBUF154, which was obtained from a 60 m deep Crella sponge. Their structures including absolute configurations were unambiguously elucidated by exhaustive spectroscopic analysis and ECD calculations. A putative biosynthetic pathway toward guignardones (1-4) is here proposed. Biological evaluation of compounds 1-8 showed that 1 and 7 exert potent inhibitory effects towards human enterovirus 71 (EV71).
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Zou et al. (2022) studied this question.
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