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Cytotoxic Indole-Diterpenoids from the Marine-Derived Fungus Penicillium sp. KFD28.

ABSTRACT: Four new indole-diterpenoids, named penerpenes K-N (1-4), along with twelve known ones (5-16), were isolated from the fermentation broth produced by adding L-tryptophan to the culture medium of the marine-derived fungus Penicillium sp. KFD28. The structures of the new compounds were elucidated extensively by 1D and 2D NMR, HRESIMS data spectroscopic analyses and ECD calculations. Compound 4 represents the second example of paxilline-type indole diterpene bearing a 1,3-dioxepane ring. Three compounds (4, 9, and 15) were cytotoxic to cancer cell lines, of which compound 9 was the most active and showed cytotoxic activity against the human liver cancer cell line BeL-7402 with an IC₅₀ value of 5.3 μM. Moreover, six compounds (5, 7, 10, 12, 14, and 15) showed antibacterial activities against Staphylococcus aureus ATCC 6538 and Bacillus subtilis ATCC 6633.

SUBMITTER: Dai LT

PROVIDER: S-EPMC8619218 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Cytotoxic Indole-Diterpenoids from the Marine-Derived Fungus Penicillium sp. KFD28.

Dai Lu-Ting LT Yang Li L Kong Fan-Dong FD Ma Qing-Yun QY Xie Qing-Yi QY Dai Hao-Fu HF Yu Zhi-Fang ZF Zhao You-Xing YX

Marine drugs 20211028 11

Four new indole-diterpenoids, named penerpenes K-N (1-4), along with twelve known ones (5-16), were isolated from the fermentation broth produced by adding L-tryptophan to the culture medium of the marine-derived fungus Penicillium sp. KFD28. The structures of the new compounds were elucidated extensively by 1D and 2D NMR, HRESIMS data spectroscopic analyses and ECD calculations. Compound 4 represents the second example of paxilline-type indole diterpene ...[more]

PMID: 34822484

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