Isolation of flavonoids and a cerebroside from the stem bark of Albizzia julibrissin.
From the EtOAc fraction of the MeOH extract of Albizzia julibrissin (Leguminosae), a rare 5-deoxyflavone (geraldone, 1), isookanin (2), luteolin (3), an isoflavone (daidzein, 4), five prenylated flavonoids [sophoflavescenol (5), kurarinone (6), kurarinol (7), kuraridin (8) and kuraridinol (9)], a cerebroside (soya-cerebroside I, 10), and (-)-syringaresinol-4-O-beta-D-glucopyranoside (11) were isolated and characterized on the basis of spectral data. Compounds 2, 3, and 11, showed 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity.
Faculty of Food Science and Biotechnology, Pukyong National University, Busan 608-737, Korea.
Mee Jung
MJ
Jung
Sam Sik
SS
Kang
Hyun Ah
HA
Jung
Goon Ja
GJ
Kim
Jae Sue
JS
Choi
D031289:Albizzia / Q000737:chemistry*; D001713:Biphenyl Compounds; D002554:Cerebrosides / Q000737:chemistry / Q000302:isolation & purification*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification*; D005609:Free Radicals / Q000737:chemistry; D010851:Picrates / Q000737:chemistry; D024301:Plant Bark / Q000737:chemistry*; D013329:Structure-Activity Relationship
D001713:Biphenyl Compounds; D002554:Cerebrosides; D005419:Flavonoids; D016166:Free Radical Scavengers; D005609:Free Radicals; D010851:Picrates; C068190:soya-cerebroside I; C004931:1,1-diphenyl-2-picrylhydrazyl