1.
Nat Prod Res
; 30(7): 750-4, 2016.
Artigo
em Inglês
| MEDLINE
| ID: mdl-26207840
RESUMO
A new ß-hydroxydihydrochalcone glycoside named ziganin (1) and a new acylated flavonol glycoside named isorhamnetin-3-O-α-L-(2â³,3â³-di-O-trans-coumaroyl)-rhamnopyranoside) (2), along with two known flavonoid glycosides, a ß-hydroxydihydrochalcone glycoside, a hydroxybenzoic acid derivative, a trinorguaiane type sesquiterpenoid, a triterpenic saponin and a polyol were isolated from the herbs of Pimpinella rhodantha Boiss. Their structures were elucidated on the basis of spectroscopic analyses including 1D-and 2D-NMR, UV, IR, CD, ESI-MS, APCI-MS, HR-ESI-MS techniques. The isolated compounds were evaluated for their antioxidant capacity through the DPPH free-radical scavenging assay and ferrous ion-chelating power test.