title: Flavonoid glucuronides from Helicteres isora.
abstract: Five flavonoid glucuronides were obtained from the fruit of Helicteres isora, three of which were previously unknown compounds: isoscutellarein 4'-methyl ether 8-O-beta-D-glucuronide 6"-n-butyl ester. isoscutellarein 4'-methyl ether 8-O-beta-D-glucuronide 2", 4"-disulfate and isoscutellarein 8-O-beta-D-glucuronide 2",4"-disulfate. The structures were determined on the basis of spectroscopy and hydrolysis experiments.
authors.affiliation: Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kamiya
authors.forename: Y
authors.initials: Y
authors.lastname: Saiki
authors.forename: T
authors.initials: T
authors.lastname: Hama
authors.forename: Y
authors.initials: Y
authors.lastname: Fujimoto
authors.forename: H
authors.initials: H
authors.lastname: Endang
authors.forename: M
authors.initials: M
authors.lastname: Umar
authors.forename: T
authors.initials: T
authors.lastname: Satake
mesh_terms: D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D020719:Glucuronides / Q000737:chemistry / Q000302:isolation & purification*; D019685:Rosales / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D005419:Flavonoids; D020719:Glucuronides