Anti-invasive and cytotoxic evaluation of a (+)-pinoresinol-based semisynthetic library against glioblastoma

• Chen Zhang,
• Kah Yean Lum,
• Jonathan M. White,
• Paul I. Forster,
• Nicholas Booth,
• Sunita A. Ramesh and
• Rohan A. Davis

Beilstein J. Org. Chem. 2026, 22, 691–704, doi:10.3762/bjoc.22.54

• reported. In this study, we chemically investigated the seeds of Eremophila maculata for the first time, which led to the isolation and characterization of two known plant metabolites, (+)-salicifoliol and (+)-pinoresinol. Due to the reported biological properties of the lignan natural product

• )pinoresinol had slight cytotoxicity at 10 µM. A transwell anti-invasive assay on the same compound showed a reduction in the invasion of adult U251MG cells by 50% and pediatric KNS42 cells by 30%, with IC50 values of 0.26 and 0.40 µM, respectively. Keywords: anti-invasive; cytotoxicity; Eremophila maculata

• Eremophila-derived specialized metabolites or semisynthetic derivatives has the potential to impact biodiscovery research. In this study, we investigated the chemistry of the seeds of Eremophila maculata for the first time. Seeds from the Eremophila genus have rarely been chemically investigated due to