title: Isolation, structure elucidation, and antioxidant evaluation of cydonioside A, an unusual terpenoid from the fruits of Cydonia vulgaris.
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.
authors.affiliation: Dipartimento di Scienze della Vita, Seconda Università degli Studi di Napoli, via Vivaldi 43, I-81100 Caserta. antonio.fiorentino@unina2.it
authors.forename: Antonio
authors.initials: A
authors.lastname: Fiorentino
authors.forename: Brigida
authors.initials: B
authors.lastname: D'Abrosca
authors.forename: Severina
authors.initials: S
authors.lastname: Pacifico
authors.forename: Claudio
authors.initials: C
authors.lastname: Mastellone
authors.forename: Simona
authors.initials: S
authors.lastname: Piccolella
authors.forename: Pietro
authors.initials: P
authors.lastname: Monaco
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification; D003508:Cycloheptanes / Q000737:chemistry* / Q000302:isolation & purification; D005638:Fruit / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D010936:Plant Extracts; D027824:Rosaceae / Q000737:chemistry*
chemical_list: C520755:4-(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; D000975:Antioxidants; D003508:Cycloheptanes; D005960:Glucosides; D010936:Plant Extracts