New azaphilones from Aspergillus neoglaber

Autor:	Thomas Isbrandt, Jens C. Frisvad, Anja Madsen, Thomas O. Larsen
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Azaphilones Aspergillus neoglaber Pigments Structural elucidation Tandem mass spectrometry Biotechnology TP248.13-248.65 Microbiology QR1-502
Zdroj:	AMB Express, Vol 10, Iss 1, Pp 1-6 (2020)
Druh dokumentu:	article
ISSN:	2191-0855
DOI:	10.1186/s13568-020-01078-4
Popis:	Abstract Three new azaphilones, sassafrin E (1), sassafrin F (2), and sassafrinamine A (3), were isolated from the filamentous fungus Aspergillus neoglaber. The structures of the compounds were determined by nuclear magnetic resonance spectroscopy, and were found to be novel analogues of two already known compound classes; sassafrins and berkchaetoazaphilones. Sassafrin E and F were both oxygen containing, while sassafrinamine A additionally contained a nitrogen atom, originating from an aminoethanol moiety, as well as extensive conjugation resulting in an intense purple colour of the pure compound. The structure of sassafrin E was further confirmed using deuterium exchange experiments coupled with high-resolution tandem mass spectrometry.
Databáze:	Directory of Open Access Journals
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