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New diketopiperazine dimers and 4-hydroxyphenylacetates from an endolichenic fungus Aspergillus sp. | LitMetric

New diketopiperazine dimers and 4-hydroxyphenylacetates from an endolichenic fungus Aspergillus sp.

Fitoterapia

Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Key Laboratory for Uighur Medicine, Institute of Materia Medica of Xinjiang Uygur Autonomous Region, Urumqi 830004, China. Electronic address:

Published: January 2025

Two novel diketopiperazine dimers (1 and 2) and two new 4-hydroxyphenylacetates (5 and 6), along with two previously known diketopiperazine dimers were isolated from the culture of the endolichenic fungus Aspergillus sp. CPCC 400810. Their structures were determined through comprehensive spectroscopic analysis, including high-resolution electrospray ionization mass spectrometry (HRESIMS) and 1D and 2D nuclear magnetic resonance (NMR) data. The absolute configurations of the new compounds were confirmed using Marfey's method and chemical synthesis.

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Source
http://dx.doi.org/10.1016/j.fitote.2024.106318DOI Listing

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