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Seven new furostanol saponins have been isolated from the rhizomes of Smilax davidiana. Their structures were established by 2D NMR spectroscopic techniques (1H,1H-COSY, NOESY, HSQC and HMBC), mass spectrometry and comparison with the literature. The isolated compounds were subjected to evaluate anti-inflammatory and cytotoxic activities in vitro. Compounds 3, 5 and 7 were found to have modest anti-inflammatory...
A phytochemical investigation of the ethanol extract of Toona sinensis (A. Juss.) Roem resulted in the isolation of ten new limonoids, toonasinenines A–J (1–10), together with two known compounds, toonafolin (11) and toonacilianin D (12). Their structures were determined by spectroscopic analyses. The isolated components were evaluated in vitro for radical scavenging potential using ABTS⋅+ and DPPH...
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