Chemical constituents of hedyotis pinifolia wall. collected in thua thien hue

This study reports the chemical constituents from the whole plants Hedyotis pinifolia Wall. Ex G. Don (now accepted as Oldenlandia pinifolia (Wall. Ex G. Don) Kuntze) collected in Thua Thien Hue province. Thirteen compounds were isolated by chromatography method. Their structures were elucidated using MS and NMR analysis and compared with reported data. They contain three anthraquinones, a carotenoid, two triterpenes, four iridoid glucosides and three flavonoid glycosides. Four of them were found for the first time in this genus.