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Chemical compounds isolated from Talinum triangulare (Portulacaceae).
de Oliveira Amorim, Ana Paula; de Carvalho, Almir Ribeiro; Lopes, Norberto Peporine; Castro, Rosane Nora; de Oliveira, Marcia Cristina Campos; de Carvalho, Mário Geraldo.
Afiliación
  • de Oliveira Amorim AP; 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.
  • de Carvalho AR; Departamento de Química, ICE, Universidade Federal Rural do Rio de Janeiro, BR 465 KM 07, 23890-000 Seropédica, RJ, Brazil.
  • Lopes NP; Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de Ribeirão Preto, Ribeirão Preto, SP, Brazil.
  • Castro RN; Departamento de Química, ICE, Universidade Federal Rural do Rio de Janeiro, BR 465 KM 07, 23890-000 Seropédica, RJ, Brazil.
  • de Oliveira MC; Departamento de Química, ICE, Universidade Federal Rural do Rio de Janeiro, BR 465 KM 07, 23890-000 Seropédica, RJ, Brazil.
  • de Carvalho MG; Departamento de Química, ICE, Universidade Federal Rural do Rio de Janeiro, BR 465 KM 07, 23890-000 Seropédica, RJ, Brazil. Electronic address: mgeraldo@ufrrj.br.
Food Chem ; 160: 204-8, 2014 Oct 01.
Article en En | MEDLINE | ID: mdl-24799228
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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Portulacaceae / Fitoquímicos País/Región como asunto: America do sul / Brasil Idioma: En Revista: Food Chem Año: 2014 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Portulacaceae / Fitoquímicos País/Región como asunto: America do sul / Brasil Idioma: En Revista: Food Chem Año: 2014 Tipo del documento: Article Pais de publicación: Reino Unido