β-Hydroxydihydrochalcone and flavonoid glycosides along with triterpene saponin and sesquiterpene from the herbs of Pimpinella rhodantha Boiss

• Published in: Natural product research 2016-04, Vol.30 (7), p.750-754
• Main Authors: Özbek, Hilal, Güvenalp, Zühal, Kuruüzüm-Uz, Ay¸e, Kazaz, Cavit, Demirezer, L. Ömür
• Format: Article
• Language: English
• Subjects: antioxidant activity; Antioxidants - chemistry; Antioxidants - isolation & purification; Apiaceae; electrospray ionization mass spectrometry; flavonoid; Flavonoids - chemistry; flavonols; Glycosides - chemistry; Glycosides - isolation & purification; herbs; Molecular Structure; nuclear magnetic resonance spectroscopy; Pimpinella; Pimpinella - chemistry; Pimpinella rhodantha; Plant Extracts - chemistry; polyols; saponins; Saponins - chemistry; Saponins - isolation & purification; Sesquiterpenes - chemistry; Sesquiterpenes - isolation & purification; sesquiterpenoids; Triterpenes - chemistry; Triterpenes - isolation & purification; triterpenoids; β-hydroxydihydrochalcone
• ISSN: 1478-6427; 1478-6419; 1478-6427
• DOI: 10.1080/14786419.2015.1062006

A new β-hydroxydihydrochalcone glycoside named ziganin (1) and a new acylated flavonol glycoside named isorhamnetin-3- O- α- L -(2″,3″-di- O-trans -coumaroyl)-rhamnopyranoside) (2), along with two known flavonoid glycosides, a β-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.