Issue 47, 2019, Issue in Progress

New α-pyrones from an endophytic fungus, Hypoxylon investiens J2

Abstract

Four new α-pyrones, hypotiens A–D (1–4), were isolated from a fungal endophyte, Hypoxylon investiens J2, harbored in the medicinal plant Blumea balsamifera. Their structures were determined through detailed HRMS and NMR spectroscopic data. Compounds 1–4 are new α-pyrone derivatives containing an unusual dimethyl substitution in the highly unsaturated side chain. Their plausible biosynthetic pathway was discussed. Biological assay indicated that compounds 1–4 showed no antimicrobial, quorum sensing inhibitory, and cytotoxic activities. The specific side chain in α-pyrone derivatives 1–4 might be responsible for the weak pharmacological activities.

Graphical abstract: New α-pyrones from an endophytic fungus, Hypoxylon investiens J2

Supplementary files

Article information

Article type
Paper
Submitted
11 Jul 2019
Accepted
26 Aug 2019
First published
02 Sep 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 27419-27423

New α-pyrones from an endophytic fungus, Hypoxylon investiens J2

C. Yuan, H. Yang, Y. Guo, L. Fan, Y. Zhang and G. Li, RSC Adv., 2019, 9, 27419 DOI: 10.1039/C9RA05308E

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