A new sulfated a-ionone glycoside from sonchus erzincanicus matthews

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Abstract

Sonchus erzincanicus (Asteraceae) is an endemic species in Turkey, where six Sonchus species grow. In this study, a phytochemical study was performed on the aerial parts of the plant. The study describes the isolation and structure elucidation of five flavonoids and two a-ionone glycosides from S. erzincanicus. The compounds were isolated using several and repeated chromatographic techniques from ethyl acetate and aqueous phases that were partitioned from a methanol extract obtained from the plant. 5,7,3',4'-Tetrahydroxy-3- methoxyflavone (1) and quercetin 3-O-ß-D-glucoside (2) were isolated from the ethyl acetate phase, while corchoionoside C 6'-O-sulfate (3), corchoionoside C (4), luteolin 7-O-glucuronide (5) and luteolin 7-O-ß-Dglucoside (6), apigenin 7-O-glucuronide (7) were isolated from the aqueous phase. Corchoionoside C 6'-O-sulfate (3), isolated for the first time from a natural source, was a new compound. The structures of the compounds were elucidated by means of 1H-NMR, 13C-NMR, 2D-NMR (COSY, HMQC, HMBC) and ESI-MS. Copyright © 2010 by the authors.

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Ozgen, U., Sevindik, H., Kazaz, C., Yigit, D., Kandemir, A., Secen, H., & Calis, I. (2010). A new sulfated a-ionone glycoside from sonchus erzincanicus matthews. Molecules, 15(4), 2593–2599. https://doi.org/10.3390/molecules15042593

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