New Anthraquinone and Iridoid Glycosides from the Stems of Hedyotis hedyotidea

Five new anthraquinone glycosides, hedanthrosides A-E (1-5, resp.) and two new iridoid glycosides, hediridosides A and B (6 and 7, resp.), along with two known anthraquinones and four known iridoids, were isolated from the stems of Hedyotis hedyotidea (DC.) MERR. The structures of the new compounds were elucidated on the basis of 1D- and 2D-NMR, and HR-MS analysis and chemical methods.