Studies on the chemical constituents in herb of Ludwigia octovalvis

Objective null To study the chemical constituents of the herb of Ludwigia octovalvis. null Method null Chemical constituents were isolated by the repeated silica gel column chromatography, and their structures were elucidated by the physicochemical properties and spectral analysis. null Result null Thirteen compounds were obtained and determined as follows: beta-sitosterol (1), oleanolic acid (2), 2alpha-hydroxy ursolic acid (3), tormentic acid...