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Glucosinolates of the only three Brassicales indigenous to French Polynesia

Abstract : The glucosinolate (GL) profiles in leaf and stem of Rorippa sarmentosa (G.Forst. ex DC.) J.F.Macbr., Lepidium bidentatum Montin var. bidentatum, and Capparis spinosa subsp. cordifolia (Lam.) Fici indigenous to French Polynesia were investigated for the first time using LC-MS analysis. In the present study, we have established the presence of 8 known GLs in R. sarmentosa: 4-(methylsulfinyl)butyl- (1), but-3-enyl- (2), 5-(methylsulfinyl)pentyl- (3), 6-(methylsulfinyl)hexyl- (4), indol-3-ylmethyl- (6), 2-phenylethyl- (7), 8-(methylsulfinyl)octyl- (8), and 9-(methylsulfinyl)nonyl- (9) GLs. We have also tentatively identified for the first time the presence in R. sarmentosa of 7-(methylsulfinyl)heptyl GL (5). In addition, we have identified two known GLs in L. bidentatum var. bidentatum: benzyl- (10) and 4-methoxybenzyl- (11) GLs. Finally, the known methyl GL (12) was shown to be largely predominant in C. spinosa subsp. cordifolia.
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Sabine Montaut, Jean-François Butaud, Tamatoa Lehartel, Patrick Rollin, Phila Raharivelomanana. Glucosinolates of the only three Brassicales indigenous to French Polynesia. Natural Product Research, Taylor & Francis, 2020, 34 (19), pp.2847-2851. ⟨10.1080/14786419.2019.1591401⟩. ⟨hal-03204852⟩



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