Chemical Constituents from Dried Aerial Parts of Eclipta prostrata

ObjectiveTo study the constituents in the dried aerial parts of Eclipta prostrata.MethodsThe constituents were isolated and purified by column chromatography and their structures were elucidated by spectroscopic methods (1D, 2D NMR, UV, IR, and HRESI-TOF-MS) and chemical analyses.ResultsEight compounds were isolated and identified as 7-O-methylorobol-4′-O-β-D-glucopyranoside (1), 3′-hydroxybiochanin A (2), echinocystic acid 28-O-β-D-glucopyranoside (3), ecliptasaponin A (4), eclalbasaponin I (5), eclalbasaponin IV (6), echinocystic acid (7), and 3-oxo-16α-hydroxy-olean-12-en-28-oic acid (8).ConclusionCompound 1 is a new compound and compound 3 is obtained from this genus for the first time.