title: Two new glycosidic acids, quamoclinic acids G and H, of the resin glycosides (Convolvulin) from the seeds of Quamoclit pennata.
abstract: Two new glycosidic acids, quamoclinic acids G and H, were isolated from the glycosidic acid fraction afforded by alkaline hydrolysis of the ether-insoluble resin glycoside (convolvulin) fraction from the seeds of Quamoclit pennata BOJER. Both compounds are the first examples of bisdesmosides of glycosidic acid having the sugar linkages at C-3 of 3,11-dihydroxytetradecanoic acid (ipurolic acid) as well as at its C-11.
authors.affiliation: School of Agriculture, Tokai University, Aso, Kumamoto 869-1404, Japan. mono@agri.u-tokai.ac.jp
authors.forename: Masateru
authors.initials: M
authors.lastname: Ono
authors.forename: Masae
authors.initials: M
authors.lastname: Imao
authors.forename: Kazumoto
authors.initials: K
authors.lastname: Miyahara
mesh_terms: D027722:Convolvulaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D012639:Seeds / Q000737:chemistry*
chemical_list: D006027:Glycosides; C554910:quamoclinic acid G; C554911:quamoclinic acid H