Galloyl-oxypaeoniflorin, suffruticosides A, B, C, and D, five new antioxidative glycosides, and suffruticoside E, a paeonol glycoside, from Chinese Moutan Cortex.
作者:Masayuki YOSHIKAWA、Emiko UCHIDA、Atsuhiro KAWAGUCHI、Isao KITAGAWA、Johji YAMAHARA
DOI:10.1248/cpb.40.2248
日期:——
Five new antioxidative glycosides named galloyl-oxypaeoniflorin, suffruticosides A, B, C, and D, and a new paeonol glycoside named suffruticoside E have been isolated from Chinese Moutan Cortex, the root cortex of Paeonia suffruticosa ANDREWS, together with antioxidative galloyl-paeoniflorin. Their structures were elucidated on the basis of chemical and physicochemical evidences. Galloyl-oxypaeoniflorin, galloyl-paeoniflorin, suffruticosides A, B, C, and D showed more potent radical scavenging and antioxidative effects than α-tocopherol.
从中国牡丹(Paeonia suffruticosa ANDREWS)的根皮层中分离出五种新的抗氧化苷,分别命名为五倍子酰氧基芍药苷(galloyl-oxypaeoniflorin)、芍药苷 A、B、C 和 D,以及一种新的芍药醇苷(paeonol glycoside),命名为芍药苷 E。根据化学和理化证据阐明了它们的结构。与α-生育酚相比,五倍子酰氧基芍药苷、五倍子酰芍药苷、芍药苷 A、B、C 和 D 具有更强的自由基清除和抗氧化作用。