Volume 19, Issue 11 e202200682
Research Article

Phelliribsin B: A New Styrylpyrone Derivative from the Medicinal Fungus Phellinus ribis

Wenjing Ren

Wenjing Ren

School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, 250355 P. R. China

Wen-Jing Ren and Meng-Yu Bao contributed equally to this work.

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Mengyu Bao

Mengyu Bao

School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, 250355 P. R. China

Wen-Jing Ren and Meng-Yu Bao contributed equally to this work.

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Jin Zhang

Jin Zhang

School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, 250355 P. R. China

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Yanhua Cao

Yanhua Cao

Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021 China

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Baoguo Duan

Baoguo Duan

Sishui Siheyuan Culture and Tourism Development Company, Ltd., Sisui, 273200 China

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Lingchuan Xu

Lingchuan Xu

School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, 250355 P. R. China

Key Laboratory of Medicinal Fungi and Resource Development in Shandong Province, Jinan, 250355 China

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Yuhong Liu

Corresponding Author

Yuhong Liu

School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, 250355 P. R. China

Key Laboratory of Medicinal Fungi and Resource Development in Shandong Province, Jinan, 250355 China

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First published: 08 October 2022
Citations: 1

Abstract

A novel styrylpyrone derivative, named phelliribsin B (1), as well as four biogenetically related known compounds, phellifuropyranone A (2), inoscavin C (3), inoscavin A (4), and inoscavin D (5) were separated and purified from the medicinal fungus Phellinus ribis. The structure of phelliribsin B was determined by spectroscopic analysis, and the absolute configuration was assigned by experimental and calculated ECD data. Additionally, the plausible biosynthetic pathway of 1 was also proposed. Compound 1 showed moderately cytotoxic activity against HepG2 and SKOV-3 tumor cell lines with IC50 values of 32.71 and 57.89 μM, respectively. Based on the results of cytotoxicity against HepG2 tumor cells, the structure-activity relationship of compounds 14 with similar skeletons was discussed. The styrylpyrone derivatives with similar skeletons have moderately cytotoxic activity and have the potential to play an important role in the anti-tumor treatment.

Graphical Abstract

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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