A new 2-arylbenzofuran with antioxidant activity from the black colored rice (Oryza sativa L.) bran.
From the black colored rice bran of Oryza sativa cv. Heugjinjubyeo, a new 2-arylbenzofuran, 2-(3,4-dihydroxyphenyl)-4,6-dihydroxybenzofuran-3-carboxylic acid methyl ester, oryzafuran (1), was isolated. Its structure has been elucidated on the basis of spectral data. This compound showed strong antioxidative activity in a 1,1-diphenyl-2-picrylhydrazyl free radical scavenging assay.
Han
Sang Jun
SJ
Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 110-460, Korea.
Ryu
Su Noh
SN
Kang
Sam Sik
SS
D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification*; D001572:Benzofurans / Q000737:chemistry / Q000302:isolation & purification*; D012275:Oryza; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification
D000975:Antioxidants; D001572:Benzofurans; D010936:Plant Extracts