[Study on flavonoids from Hedyotis diffusa Willd].
Five flavonoids were isolated from Hedyotis diffusa Willd. Their structures were elucidated as kaempferol (I), kaempferol 3-O-beta-D-glucopyranoside (II), kaempferol 3-O-(6"-O--L-rhamnosyl)-beta-D-glucopyranoside (III), quercetin 3-O-beta-D-glucopyranoside (IV) and quercetin 3-O-(2"-O-beta-D-glucopyranosyl)-beta-D-glucopyranoside (V) by spectroscopic analysis. Compounds I - III and V were originally isolated from H. diffusa.
Zhang
Haijuan
H
Department of Chemistry, Yunnan Normal University, Kunming.
Chen
Yegao
Y
Huang
Rong
R
D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D032064:Hedyotis / Q000737:chemistry*; D044949:Kaempferols / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*
D005419:Flavonoids; D005960:Glucosides; D044949:Kaempferols; C006552:kaempferol