Three new phenylpropanoid glucosides and a new tyramine-type alkamide from Piper puberulum.
J Asian Nat Prod Res
; 26(2): 237-247, 2024 Feb.
Article
en En
| MEDLINE
| ID: mdl-37812065
ABSTRACT
Three new phenylpropanoid glycosides, piperpubelide (1), 1-propionyl-3-hydroxy-phenyl-4-O-ß-D-glucopyranoside (2), and 1-propionyl-4-hydroxy-phenyl-3-O-ß-D-glucopyranoside (3), a new tyramine-type alkamide, puberulumine L (4), together with thirteen known compounds (5-17) were isolated from Piper puberulum (Benth.) Maxim. Their structures were elucidated by analysis of spectroscopic data involving NMR, IR, UV, and HRESIMS data. Calculated and experimental ECD was used to confirm the configuration of compound 1. Compounds 14, 16, and 17 exhibited relatively positive DPPH radical scavenging activities, with corresponding EC50 of 10.23, 24.12, and 21.83 µM, respectively. In addition, compound 5 inhibited LPS-induced NO production in BV-2 microglia with an IC50 value of 18.05 µM.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Piper
/
Glucósidos
Idioma:
En
Revista:
J Asian Nat Prod Res
Asunto de la revista:
BOTANICA
/
QUIMICA
Año:
2024
Tipo del documento:
Article
País de afiliación:
China