Comparative Phytochemical Screening and Cytotoxic Efficacy of Endemic Cephalaria tuteliana

Phytochemical investigation of Cephalaria tuteliana (Caprifoliaceae) endemic to Turkey was carried out for the first time. Thirteen compounds were isolated, including 2 triterpenoid sapogenins, 10 saponins, and 1 iridoid glycoside. This is the first report of the isolation of pomolic acid, tormentic acid, and 3- O-α-l-rhamnopyranosyl-(1→3)- β-d-glucopyranosyl hederagenin, not only from the Cephalaria genus, but also from the Caprifoliaceae...