title: Two New Compounds from Hedyotis lindleyana.
abstract: One new sodium salt of an iridoid acid, sodium 6-O-methyldeacetylasperulosidate (1) and one new heterocyclic compound, 1,3,6-trimethylpyrano[2,3- d]imidazole-2,5(1H,3H)-dione (2) were isolated from Hedyotis lindleyana Hook. (Rubiaceae), together with seven known compounds, oleanolic acid (3), ursolic acid (4), teneoside D (5), 6β-hydroxygeniposide (6), deacetylasperulosidic acid sodium salt (7), liquiritin (8), and 3,3',4'-tri-O-methylellagic acid (9). The structures were established by spectroscopic (1D, 2D NMR) and HR-ESI-MS analysis, as well as by comparison with data reported in the literature.
authors.forename: Tuyen Pham Nguyen
authors.initials: TP
authors.lastname: Kim
authors.forename: Tram Phan Thi
authors.initials: TP
authors.lastname: Mai
authors.forename: Phung Nguyen Kim
authors.initials: PN
authors.lastname: Phi
mesh_terms: D032064:Hedyotis / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry / Q000302:isolation & purification*; D039823:Iridoids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000302:isolation & purification; D011714:Pyrans / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000302:isolation & purification; D000097245:Ursolic Acid
chemical_list: D007093:Imidazoles; D039823:Iridoids; D009828:Oleanolic Acid; D011714:Pyrans; D014315:Triterpenes; D000097245:Ursolic Acid; C000602582:1,3,6-trimethylpyrano(2,3- d)imidazole-2,5(1H,3H)-dione; C000602581:sodium 6-O-methyldeacetylasperulosidate