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Isolation, Structure Elucidation, and Antioxidant Evaluation of Cydonioside A, an Unusual Terpenoid from the Fruits of Cydonia vulgaris
Author(s) -
Fiorentino Antonio,
D'Abrosca Brigida,
Pacifico Severina,
Mastellone Claudio,
Piccolella Simona,
Monaco Pietro
Publication year - 2007
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.200790088
Subject(s) - chemistry , terpenoid , dpph , antioxidant , superoxide , stereochemistry , organic chemistry , enzyme
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 (O ${{_{2}^{{^\cdot} -}}}$ ), as well as for its overall antioxidant activity, as assessed by the formation of a phosphomolybdenum complex.