title: Identification and characterization of component organic and glycosidic acids of crude resin glycoside fraction from Calystegia soldanella.
abstract: Alkaline hydrolysis of the crude resin glycoside fraction of the leaves, stems, and roots of Calystegia soldanella ROEM. et SCHULT. (Convolvulaceae) gave four new glycosidic acids, named calysolic acids A, B, C, and D, along with one known glycosidic acid, soldanellic acid B, and three organic acids, 2S-methylbutyric, tiglic, and 2S,3S-nilic acids. The structures of the new glycosidic acids were characterized on the basis of spectroscopic data and chemical evidence.
authors: School of Agriculture, Tokai University, Japan.
authors: Ayako
authors: A
authors: Takigawa
authors: Hiroaki
authors: H
authors: Setoguchi
authors: Masafumi
authors: M
authors: Okawa
authors: Junei
authors: J
authors: Kinjo
authors: Hiroyuki
authors: H
authors: Miyashita
authors: Kazumi
authors: K
authors: Yokomizo
authors: Hitoshi
authors: H
authors: Yoshimitsu
authors: Toshihiro
authors: T
authors: Nohara
authors: Masateru
authors: M
authors: Ono
mesh_terms: D000143:Acids / Q000737:chemistry* / Q000302:isolation & purification; D031253:Calystegia / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D012116:Resins, Plant / Q000737:chemistry
chemical_list: D000143:Acids; D006027:Glycosides; D012116:Resins, Plant