A New Flavonoid Derivative from Leaves of Oxandra sessiliflora R. E. Fries

作者：de Sousa Elcilene A; da Silva Armenio A C A; Cavalheiro Alberto J; Lago Joao Henrique G; Chaves Mariana H^*

来源：Journal of the Brazilian Chemical Society, 2014, 25(4): 704-708.

DOI：10.5935/0103-5053.20140023

• Oxandra sessiliflora
• flavonoids
• quercetin-3-O-alpha-L-rhamnopyranosyl-(1 -> 4)-beta-D-glucopyranoside

The ethyl acetate (EtOAc) phase obtained from the partition of the ethanol (EtOH) extract from leaves of O. sessiliflora R. E. Fries (Annonaceae) was subjected to several chromatographic steps, including high efficiency liquid chromatography (HPLC), to afford the flavonoids: quercetin-3-O-alpha-L-rhamnopyranosyl-(1 -> 4)-beta-D-glucopyranoside (1), unprecedented in the literature, kaempferol-3-O-alpha-L-rhamnopyranosyl-(1 -> 4)-beta-D-glucopyranoside (2), rutin (3), and kaempferol-3-O-rutinoside (4). The structures were elucidated by analysis of their H-1 and C-13 nuclear magnetic resonance (NMR) (1D and 2D) spectra and mass spectrometry.

• 出版日期2014-4
• 单位Univ Estadual Paulista