Flavonoid glucuronides from Helicteres isora.
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.
Kamiya
K
K
Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Japan.
Saiki
Y
Y
Hama
T
T
Fujimoto
Y
Y
Endang
H
H
Umar
M
M
Satake
T
T
D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D020719:Glucuronides / Q000737:chemistry / Q000302:isolation & purification*; D019685:Rosales / Q000737:chemistry*; D013057:Spectrum Analysis
D005419:Flavonoids; D020719:Glucuronides