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Natural Product Research
Formerly Natural Product Letters
Volume 38, 2024 - Issue 8
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Research Articles

Two new chromone derivatives from the rhizosphere soil fungus Ilyonectria robusta

Min Kuanga Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P.R. China;b Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P.R. ChinaView further author information
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Wei-Wei Penga Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P.R. China;b Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P.R. ChinaView further author information
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Yuan-Tao Huangc Affiliated Haikou Hospital of Xiangya School of Medicine, Central South University, Haikou, P.R. ChinaView further author information
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Mei-Fang Lic Affiliated Haikou Hospital of Xiangya School of Medicine, Central South University, Haikou, P.R. ChinaView further author information
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Si-Yu Qina Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P.R. China;b Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P.R. ChinaView further author information
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Yu-Ting Zhenga Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P.R. China;b Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P.R. ChinaView further author information
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Li Xua Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P.R. China;b Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P.R. ChinaView further author information
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Qi Huanga Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P.R. China;b Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P.R. China;d Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, P.R. ChinaCorrespondence[email protected]
View further author information
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Zhen-Xing Zoua Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P.R. China;b Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, P.R. ChinaCorrespondence[email protected]
View further author information
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Pages 1398-1405 | Received 19 Aug 2022, Accepted 07 Nov 2022, Published online: 21 Nov 2022
 
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Abstract

Two new chromone derivatives (1 and 2), and two known compounds (3 and 4) were isolated from the rhizosphere soil fungus Ilyonectria robusta. Their planar structures and absolute configurations were determined by extensive spectroscopic analysis and electronic circular dichroism (ECD) calculations. Additionally, all the isolated compounds were evaluated for their antibacterial activity against Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa and Escherichia coli, but no obvious activity was observed at a concentration of 128 μg/mL.

Graphical Abstract

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This project was funded by Natural Science Foundation of Hunan Province (No. 2021JJ30917), Key Research and Development Project of Hainan Province (No. ZDYF2022SHFZ048), the High-tech Industry Science and Technology Innovation Project of Hunan Province (2020GK4083), the Central South University Postgraduate Independent Exploration and Innovation Project (Nos. 2021zzts0978, 2021zzts0994 and 2022zzts0899), and the Open Sharing Fund for the Large-scale Instruments and Equipments of Central South University.

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