Abstract
Bioassay-guided fractionation led to the isolation of six new flavonol glycosides, floramanosides A (1), B (2), C (3), D (4), E (5), and F (6), from the flowers of Abelmouschus manihot. Their structures were elucidated by chemical and spectroscopic methods (UV, IR, HRESI-TOF-MS, 1D- and 2D-NMR). Activity screening results showed that the compounds had 2,2-diphenyl-1-picrylhydrazyl scavenging and aldose reductase inhibitory activities.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Aldehyde Reductase / metabolism
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Antioxidants / chemistry*
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Biphenyl Compounds / chemistry
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Flavonols / chemistry*
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Flowers / chemistry*
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Glycosides / chemistry*
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Magnetic Resonance Spectroscopy
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Manihot / chemistry*
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Mass Spectrometry
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Molecular Structure
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Picrates / chemistry
Substances
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Antioxidants
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Biphenyl Compounds
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Flavonols
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Glycosides
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Picrates
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1,1-diphenyl-2-picrylhydrazyl
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Aldehyde Reductase