Abstract
A novel terpenoid, cydonioside A (1), was isolated from the fruits of Cydonia vulgaris Pers. Its structure and relative configuration were elucidated on the basis of in-depth spectroscopic analyses, including 2D-NMR experiments as well as MM+ calculations. Compound 1 was assayed for its radical-scavenging activity towards the DPPH radical and the superoxide radical anion (O2*-), as well as for its overall antioxidant activity, as assessed by the formation of a phosphomolybdenum complex.
MeSH terms
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Antioxidants / chemistry*
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Antioxidants / isolation & purification
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Cycloheptanes / chemistry*
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Cycloheptanes / isolation & purification
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Fruit / chemistry*
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Glucosides / chemistry*
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Glucosides / isolation & purification
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Molecular Structure
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Plant Extracts
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Rosaceae / chemistry*
Substances
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4-(4-(5-(glucopyranosyloxy)-3,7,7-trimethylcyclohept-2-en-1-ylidene)-3-methylbut-2-enyl)tetrahydro-3,3a,4-trihydroxyfuro(3,4-b)furan-6(4H)-one
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Antioxidants
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Cycloheptanes
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Glucosides
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Plant Extracts