Phytochemical and chemotaxonomic study of Polygala altomontana (Polygalaceae)

In this study, 7 compounds were isolated from a hydroalcoholic extract of Polygala altomontana: aurapten (1), α-spinasterol (2) dihydrostyryl-2-pyrone (3) and styryl-2-pyrones (4–7). The styryl-2-pyrone (5) is new in the literature and although the others are known compounds this is the first time they have been isolated from the species P. altomontana. This is the second species of the genus Polygala to present the accumulation of dihydrostyryl-2-pyrones and styryl-2-pyrones. The chemotaxonomic significance of this data for the Polygala genus was summarized.