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[PMID]: | 24799228 |
[Au] Autor: | de Oliveira Amorim AP; de Carvalho AR; Lopes NP; Castro RN; de Oliveira MC; de Carvalho MG |
[Ad] Endereço: | Departamento de Química, ICE, Universidade Federal Rural do Rio de Janeiro, BR 465 KM 07, 23890-000 Seropédica, RJ, Brazil. Electronic address: anamorim07@hotmail.com. |
[Ti] Título: | Chemical compounds isolated from Talinum triangulare (Portulacaceae). |
[So] Source: | Food Chem;160:204-8, 2014 Oct 01. | [Is] ISSN: | 0308-8146 |
[Cp] País de publicação: | England |
[La] Idioma: | eng |
[Ab] Resumo: | This first phytochemical study of Talinum triangulare Leach (Portulacaceae), also known as 'cariru', which is a commonly consumed food in Northern Brazil, allowed the isolation and structural determination of four new compounds: one acrylamide, 3-N-(acryloyl, N-pentadecanoyl) propanoic acid (5), and three new phaeophytins named (15(1)S, 17R, 18R)-Ficuschlorin D acid (3(1),3(2)-didehydro-7-oxo-17(3)-O-phytyl-rhodochlorin-15-acetic acid), (13), Talichorin A (17R, 18R)-phaeophytin b-15(1)-hidroxy, 15(2),15(3)-acetyl-13(1)-carboxilic acid (14), and (15(1)S, 17R, 18R)-phaeophytin b peroxylactone or (15(1)S, 17R, 18R)-hydroperoxy-ficuschlorin D (16), together with twelve known compounds, including four phaeophytins (11,12, 15 and 17). The structures of the compounds were established on the basis of 1D and 2D NMR, IR, HRESI-MS spectra, including GC-MS, and HPLC-UV analysis, as well as comparisons with the literature data. The CD spectra data analysis were used to define the absolute configuration of phaeophytins 12 (13(2)R, 17R, 18R)-13(2)-hydroxyphaeophytin a, 13 and 16, 15 (15(1)S, 17R, 18R)-3(1),3(2)-didehydro-15(1)-hydroxyrhodochlorin-15-acetic acid δ-lactone-15(2)-methyl-17(3)-phytyl ester and 17 (17R, 18R)-purpurin 18-phytyl ester. |
[Mh] Termos MeSH primário: |
Compostos Fitoquímicos/análise Portulacaceae/química
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[Mh] Termos MeSH secundário: |
Brasil Clorofila/análise Cromatografia Líquida de Alta Pressão Dicroísmo Circular Cromatografia Gasosa-Espectrometria de Massas Espectroscopia de Ressonância Magnética Magnoliopsida Compostos Fitoquímicos/isolamento & purificação Extratos Vegetais/química Folhas de Planta/química Caules de Planta/química Espectrometria de Massas por Ionização por Electrospray
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[Pt] Tipo de publicação: | JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T |
[Nm] Nome de substância:
| 0 (Phytochemicals); 0 (Plant Extracts); 1406-65-1 (Chlorophyll) |
[Em] Mês de entrada: | 1511 |
[Cu] Atualização por classe: | 171116 |
[Lr] Data última revisão:
| 171116 |
[Sb] Subgrupo de revista: | IM |
[Da] Data de entrada para processamento: | 140507 |
[St] Status: | MEDLINE |
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