title: Indonesian medicinal plants. XV. Chemical structures of five new resin-glycosides, merremosides a, b, c, d, and e, from the tuber of Merremia mammosa (Convolvulaceae).
abstract: Five new resin-glycosides, named merremosides a (1), b (2), c (3), d (4), and e (5), were isolated from the tuber of Merremia mammosa (LOUR.) HALLIER f. (Convolvulaceae), an Indonesian medicinal plant. The structures of 1, 2, 3, 4, and 5 have been elucidated on the basis of chemical and physiochemical evidence, including syntheses of (11S)-(+)- and (11R)-(--)-jalapinolic acid (16b and 18b) and the glycosidic acid designated as merremoside i (6).
authors.affiliation: Faculty of Pharmaceutical Sciences, Osaka University, Japan.
authors.forename: I
authors.initials: I
authors.lastname: Kitagawa
authors.forename: N I
authors.initials: NI
authors.lastname: Baek
authors.forename: K
authors.initials: K
authors.lastname: Kawashima
authors.forename: Y
authors.initials: Y
authors.lastname: Yokokawa
authors.forename: M
authors.initials: M
authors.lastname: Yoshikawa
authors.forename: K
authors.initials: K
authors.lastname: Ohashi
authors.forename: H
authors.initials: H
authors.lastname: Shibuya
mesh_terms: D002240:Carbohydrate Sequence; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D008969:Molecular Sequence Data; D015394:Molecular Structure; D009844:Oligosaccharides / Q000737:chemistry* / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D012116:Resins, Plant / Q000737:chemistry
chemical_list: D006027:Glycosides; D009844:Oligosaccharides; D012116:Resins, Plant; C057148:merremoside B; C057149:merremoside D