Four new prenylated flavonoids and xanthones from the root bark of Artocarpus nobilis.
Chemical investigation of the n-butanol extract from the methanol extract of the root bark of Artocarpus nobilis furnished four new prenylated flavonoids together with artonin E 2'-methylether (4), isoartonin E 2'-methylether (5), dihydroisoartonin E 2'-methylether (6), artonin V 2'-methylether (7), artobiloxanthone (1), artonin E (2) and cycloartobiloxanthone (3). All these compounds showed strong radical scavenging properties towards DPPH radical.
Jayasinghe
U L B
UL
Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka. lalith@ifs.ac.lk, ulbj2003@yahoo.com
Samarakoon
T B
TB
Kumarihamy
B M M
BM
Hara
N
N
Fujimoto
Y
Y
D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D031622:Artocarpus / Q000737:chemistry*; D001713:Biphenyl Compounds; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006834:Hydrazines; D015394:Molecular Structure; D010851:Picrates; D024301:Plant Bark; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D018517:Plant Roots
D000975:Antioxidants; D001713:Biphenyl Compounds; D005419:Flavonoids; D016166:Free Radical Scavengers; D006834:Hydrazines; D010851:Picrates; D010936:Plant Extracts; C066727:artonin E; C004931:1,1-diphenyl-2-picrylhydrazyl