title: [New ellagic glycosides and known triterpenoids from Duchesnea indica Focke].
abstract: Two new ellagic glycosides, named ducheside A and ducheside B, have been isolated from Ducheside indica Focke. Their structures were established as 3'-O-methyl-ellagic acid-4-O-beta-D-xylopyranoside (I), 3'-O-methyl-ellagic acid-4-O-alpha-L-arabinofuranoside (II), respectively, on the basis of chemical method and spectral analysis. In addition, four known compounds were isolated and identified as 3 beta-hydroxylurs-12-en-28-oic acid (III), 2 alpha, 3 beta, 19 alpha-trihydroxylurs-12-en-28-oic acid (IV), 2 alpha, 3 beta, 19 alpha-trihydroxylurs-12-en-28-oic acid 28-O-beta-D-glucopyranoside (V), 2 alpha, 3 alpha, 19 alpha-trihydroxylurs-12-en-28-oic acid 28-O-beta-D-glucopyranoside (VI). Compounds IV, V, VI were isolated for the first time from Duchesnea genus.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Acadamy of Medical Sciences and Peking Union Medical College, Beijing.
authors.forename: L
authors.initials: L
authors.lastname: Ye
authors.forename: J S
authors.initials: JS
authors.lastname: Yang
mesh_terms: D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D019685:Rosales / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D014315:Triterpenes