New lignans from Phyllanthodendron dunnianum.
Nat Prod Res
; : 1-9, 2024 May 20.
Article
em En
| MEDLINE
| ID: mdl-38767208
ABSTRACT
A new lignan phyllanins A (1) and a lignan phyllanins B (2) for which the absolute configuration was determined for the first time, along with four known lignans (3-6) were isolated from the branch and leaf extracts of Phyllanthodendron dunnianum. Their planar structures were mainly determined by a combination of 1D and 2D NMR, HRESIMS spectral analyses, and the absolute configurations of the compounds 1 and 2 were established by DFT GIAO 13C NMR and electronic circular dichroism (ECD) calculations. In addition, all these six lignans were firstly tested for the antibacterial activities against MRSA, Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa and Escherichia coli. Among these compounds, 2 and 5 showed potential antibacterial activities against MRSA and S. aureus with MIC values of 4 and 8 µg/mL, respectively.
Texto completo:
1
Base de dados:
MEDLINE
Idioma:
En
Revista:
Nat Prod Res
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China