Quadristerols A-G: Seven undescribed ergosterols from Aspergillus quadrilineata.
Aspergillus quadrilineata
Ergosterols
Immunosuppressive activity
Trichocomaceae
Journal
Phytochemistry
ISSN: 1873-3700
Titre abrégé: Phytochemistry
Pays: England
ID NLM: 0151434
Informations de publication
Date de publication:
Sep 2023
Sep 2023
Historique:
received:
29
11
2022
revised:
25
06
2023
accepted:
27
06
2023
medline:
4
8
2023
pubmed:
3
7
2023
entrez:
2
7
2023
Statut:
ppublish
Résumé
Quadristerols A-G, seven undescribed ergosterols, were obtained from Aspergillus quadrilineata. Their structures and absolute configurations were determined based on HRESIMS, NMR, quantum-chemical calculations, and single-crystal X-ray diffraction analyses. Quadristerols A-G featured ergosterol skeletons with different attachments; quadristerols A-C were three diastereoisomers possessing a 2-hydroxy-propionyloxy group at C-6, and quadristerols D-G were two pairs of epimers with a 2,3-butanediol group at C-6. All of these compounds were evaluated for their immunosuppressive activities in vitro. Quadristerols B and C showed excellent inhibitory effects against concanavalin A-induced T lymphocyte proliferation with IC
Identifiants
pubmed: 37393972
pii: S0031-9422(23)00201-7
doi: 10.1016/j.phytochem.2023.113785
pii:
doi:
Substances chimiques
Ergosterol
Z30RAY509F
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
113785Informations de copyright
Copyright © 2023 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.