摘要

A phytochemical investigation of the roots of Incarvillea arguta led to the isolation of secoarguterin (1), which is the first example of 5,6-secoiridoid. Its structure and absolute configuration was elucidated by extensive spectral analysis and total synthesis. Compound 1 showedmoderate inhibition against human colon cancer cells HCT116 with an IC50 value of 28.72 mu M.