New chlorogenic acid derivatives and triterpenoids from Scorzonera aucheriana

Chromatographic separation ofn-hexane and ethyl acetate fraction of a crude methanol extract obtained from aerial parts of theScorzonera aucherianaDC collected from Sivas province of Turkey yielded nine natural compounds; two new 3-caffeoyl-quinic acid analogs (1-2), one new taraxasterol oleate (3), and six known triterpenoids taraxasterol (4), taraxasterol acetate (5), ptiloepoxide (6), lupeol (7), lupeol acetate (8), andβ-sitosterol (9) were characterized. The structures of the isolated compounds were elucidated on the basis of NMR (¹H,¹³C, COSY, HMBC, HSQC, and TOCSY), UV, FT-IR and LC-Q-TOF-MS spectrometric data.