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Natural Product Research
Formerly Natural Product Letters
Volume 34, 2020 - Issue 8
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Research Articles

Citriperazines A-D produced by a marine algae-derived fungus Penicillium sp. KMM 4672

ORCID Icon, , , ORCID Icon, , , , , , & show all
Pages 1118-1123 | Received 06 Sep 2018, Accepted 22 Nov 2018, Published online: 19 Jan 2019
 

Abstract

Four new diketopiperazine alkaloids, citriperazines A-D were isolated from algae-derived Penicillium sp. KMM 4672. The structures of compounds 1–4 were determined using spectroscopic methods. The absolute configurations of compounds 1 and 4 were established by comparison of calculated and experimental ECD spectra. The cytotoxicity of compounds 14 against several human prostate cell lines was evaluated.

Graphical Abstract

Acknowledgements

The study was supported by the Russian Foundation for Basic Research (Grant No 18-34-00621).

Disclosure statement

No potential conflict of interest was reported by the authors.

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