Two new 3-benzylphthalides from Scorzonera veratrifolia Fenzl

Abstract

A phytochemical investigation of Scorzonera veratrifolia Fenzl (Asteraceae) yielded two new 3-benzylphthalides, scorzoveratrin (1) and scorzoveratrozit (2), together with five known compounds, chlorogenic acid (3), chlorogenic acid methyl ester (4), cryptochlorogenic acid (5), 4,5-dicaffeoylquinic acid (6) and 3,5-dicaffeoylquinic acid (7). All secondary metabolites were assigned using physicochemical and spectroscopic data. The known compounds 3–7 were isolated for the first time from this species.

Keywords:

• Scorzonera veratrifolia
• Asteraceae
• scorzoveratrin
• scorzoveratrozit
• benzylphthalide

Acknowledgements

This work was supported by the Research Fund of Istanbul University (Project No. 565/14082006). The author wishes to thank Dr Fevzi Özgökçe for collecting and identifying the plant material.