title: Components of convolvulin from Quamoclit × multifida.
abstract: Alkaline hydrolysis of the ether-insoluble resin glycoside (convolvulin) fraction of the seeds of Quamoclit × multifida (syn. Q. sloteri House, Convolvulaceae), a hybrid between Q. pennat and Q. coccinea, gave three new glycosidic acids (maltifidinic acids C, D, and E) along with three known glycosidic acids (quamoclinic acids B, C, and D) and four organic acids (2S-methylbutyric, tiglic, 2R,3R-nilic, and 7S-hydroxydecanoic acids). The structures of the new glycosidic acids were characterized on the basis of spectroscopic data as well as chemical evidence.
authors.affiliation: School of Agriculture, Tokai University, 5435 Minamiaso, Aso, Kumamoto 869-1404, Japan. mono@agri.u-tokai.ac.jp
authors.forename: Masateru
authors.initials: M
authors.lastname: Ono
authors.forename: Makiko
authors.initials: M
authors.lastname: Kishida
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Ikegami
authors.forename: Yoshinari
authors.initials: Y
authors.lastname: Takaki
authors.forename: Masafumi
authors.initials: M
authors.lastname: Okawa
authors.forename: Junei
authors.initials: J
authors.lastname: Kinjo
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Yoshimitsu
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Nohara
authors.forename: Kazumoto
authors.initials: K
authors.lastname: Miyahara
mesh_terms: D027722:Convolvulaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D012639:Seeds / Q000737:chemistry
chemical_list: D006027:Glycosides