1-Methyl-2-undecyl-4 (1H) -quinolone

This compound, a quinolone alkaloid from Evodia rutaecarpa, acts as a selective MAO-B inhibitor (IC50 = 15.3 μM) and mitigates vascular calcification in vitro by suppressing PiT-1 expression. It also exhibits moderate antiangiogenic activity, making it a useful research tool in neuropharmacology and cardiovascular disease studies.