A new flavonoid derivative from leaves of Oxandra Sessiliflora R. E. Fries
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-α-L-rhamno...
| Authors: | , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2014 |
| Country: | Brasil |
| Institution: | Universidade Federal de São Paulo (UNIFESP) |
| Repository: | Repositório Institucional da UNIFESP |
| Language: | English |
| OAI Identifier: | oai:repositorio.unifesp.br:11600/8355 |
| Online Access: | http://dx.doi.org/10.5935/0103-5053.20140023 http://repositorio.unifesp.br/handle/11600/8355 |
| Access Level: | Open access |
| Keyword: | Oxandra sessiliflora flavonoids quercetin-3-O-α-L-rhamnopyranosyl-(14)-β-D-glucopyranoside |
| Summary: | 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-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranoside (1), unprecedented in the literature, kaempferol-3-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranoside (2), rutin (3), and kaempferol-3-O-rutinoside (4). The structures were elucidated by analysis of their ¹H and 13C nuclear magnetic resonance (NMR) (1D and 2D) spectra and mass spectrometry. |
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