Chemical constituents from Euphorbia hirta

Abstract Thirty-one compounds, including fourteen triterpenoids ( 1 – 14 ), seven coumarins ( 15 – 21 ), four lignans ( 22 – 25 ), and six diterpenes ( 26 – 31 ) were isolated from the aerial part of Euphorbia hirta . The structures were elucidated by spectroscopic methods and by comparison of their reported spectroscopic data. These compounds have shown the chemical relationships between this plant and other species from the genus Euphorbia .