Phytochemical investigation of the ethanol extract from the whole plant of Agrimonia pilosa led to the isolation of 31 compounds, including 16 flavonoids (1-16), 5 triterpenes (17-21), 1 isocoumarin (22), 5 phenolic acids (23-27), 1 ceramide (28), 2 agrimols (29-30) and 1 fatty acid (31). Their structures were determined by various spectroscopic analyses. Compounds 5, 7 and 20 were firstly isolated from the genus Agrimonia, and compounds 6, 10-11, 15, 26, 28 and 31 were isolated from the family Rosaceae for the first time. Moreover, the chemotaxonomic significance of these compounds was summarised.
Keywords: Agrimonia pilosa Ledeb; chemotaxonomy; flavonoids; phenolic derivatives; triterpenoids.