New Antioxidant Phenylethanol Glycosides from Torenia concolor

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题名:	New Antioxidant Phenylethanol Glycosides from Torenia concolor
作者:	(Yu-Shiang Chou);何玉鈴;(Chih-Wen Ding);張永勳(Yuan Shiun Chang)*
贡献者:	藥學院中國藥學研究所;中國附醫藥劑部中藥局
关键词:	Torenia concolor;Scrophulariaceae;phenylethanol glycosides;torenoside A;torenoside B
日期:	2009-02
上传时间:	2009-08-26 16:22:32 (UTC+8)
摘要:	Two new phenylethanol glycosides, phenylethyl-O-agr-l-rhamnopyranosyl-(1 → 2)-β-d-glucopyranoside (torenoside A, 1) and 2'-O-3,4-dihydroxy-β-phenylethoxy-O-agr-l-rhamnopyranosyl-(1'' → 3')-(4'-O-caffeoyl)-β-d-glucopyranoside (torenoside B, 2), along with the 17 known compounds (3-19) were isolated from Torenia concolor. Those structures were established on the basis of spectroscopic analysis including NMR spectroscopic techniques (13C, 1H, 1H-1H COSY, HMQC, HMBC, TOCSY, and NOESY). Moreover, phenylethanol glycosides 3-6 exhibited significant antioxidant activities in DPPH radical scavenging assay.
關聯:	JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 11(2)110~115
显示于类别:	[中國藥學研究所(已停用)] 期刊論文

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