Novel geranylhydroquinone derived meroterpenoids from the fungus Clitocybe clavipes and their cytotoxic activity.
Fitoterapia
; 161: 105251, 2022 Sep.
Article
em En
| MEDLINE
| ID: mdl-35803523
ABSTRACT
Three novel geranylhydroquinone derived meroterpenoids, named clavilactones J and K (1-2) and clavipol C (3), were isolated from the basidiomycete Clitocybe clavipes. Their structures were unambiguously identified by extensive spectroscopic data analysis, and the electronic circular dichroism (ECD) calculation, Gauge-Including Atomic Orbitals (GIAO) NMR calculations and Mo2(OAc)4-induced electronic circular dichroism experiments were used to establish their absolute configurations. Compound 1, with two epoxy groups located at the 10-membered carbocycle, is uncommon in the reported meroterpenoids from C. clavipes. All the obtained compounds (1-3) were tested for their cytotoxic activity against human tumor cell line HGC-27 by using the MTT assay. All the compounds exhibited moderate cytotoxic activities against HGC-27 cell with IC50 values ranging from 33.5 to 56.6 µM.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Agaricales
/
Antineoplásicos
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article