| Abstract
| - The isolation of six flavon glycosides (1−6), among them four new natural compounds (1−4), fromthe CHCl3/MeOH extract of the fruits of Cyclanthera pedata is reported. All of the structures wereelucidated by spectroscopic methods, including the concerted application of one-dimensional (1H,1H TOCSY, 13C, and 13C DEPT-NMR) and two-dimensional NMR techniques (DQF-COSY, HSQC,and HMBC). For all of the isolated compounds the antioxidant activity was determined by measuringthe free radical scavenging activity, using the Trolox equivalent antioxidant capacity (TEAC) method,and the coupled oxidation of β-carotene and linoleic acid. Keywords: Cyclanthera pedata; Cucurbitaceae; flavone glycosides; NMR; antioxidant activity
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