3''/> New antioxidant phenylethanol glycosides from Torenia concolor
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首页> 外文期刊>Journal of Asian natural products research >New antioxidant phenylethanol glycosides from Torenia concolor
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New antioxidant phenylethanol glycosides from Torenia concolor

机译：New antioxidant phenylethanol glycosides from Torenia concolor

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Two new phenylethanol glycosides, phenylethyl-O-alpha-L-rhamnopyranosyl-(l -> 2)-beta-d-glucopyranoside (torenoside A, 1) and 2'-O-3,4-dihydroxy-beta-phenylefhoxy-O-alpha-L-rhamno-pyranosyl-(l" -> 3')-(4'-O-caffeoyl)-beta-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 (~(13)C, 'H, 'H-'H (COSY, HMQC, HMBC, TOCSY, and NOESY). Moreover, phenylethanol glycosides 3-6 exhibited significant antioxidant activities in DPPH radical scavenging assay.

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