Published

2007-07-01

Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae)

Triterpenos e flavonóides isolados de flores de Laseguea erecta (Apocynaceae)

Keywords:

Laseguea erecta, Apocynaceae, flavonoids, ursolic acid, quercetin (en)
Laseguea erecta, Apocynaceae, flavonóides, acido ursólico, quercetina (es)
Laseguea erecta, Apocynaceae, flavonóides, acido ursólico, quercetina (pt)

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Authors

  • Mario Geraldo de Carvalho
  • Maritza A. Rojas Cardozo
  • Virginia Claudia da Silva
  • Alceni Augusta Werle

From the flowers of Laseguea erecta were isolated the lupeol, ursolic acid, quercetin (3,5,7,3’,4’-pentahydroxyflavone) and 3-O-a-L-arabinopyranosylquercetin. This is the first phytochemical study of this genera flowers’. The structures were established by the IR, 1H and 13C NMR (1D, 2D) spectral data analysis and by comparison with literature data.

Das flores de Laseguea erecta isolaram-se o lupeol, ácido ursólico e os flavonóides quercetina (3,5,7,3’,4’-pentaidroxiflavona) e 3-O-a-L-arabinopiranosil quercetina. Esta é o primeiro estudo sobre metabólitos especiais em flores desse género. As estruturas foram determinadas através da análise dos dados espectrais de IV, RMN de 1H e 13C (1D e 2D) e comparação com valores registrados na literatura.

Das flores de Laseguea erecta isolaram-se o lupeol, ácido ursólico e os flavonóides quercetina (3,5,7,3’,4’-pentaidroxiflavona) e 3-O-a-L-arabinopiranosil quercetina. Esta é o primeiro estudo sobre metabólitos especiais em flores desse género. As estruturas foram determinadas através da análise dos dados espectrais de IV, RMN de 1H e 13C (1D e 2D) e comparação com valores registrados na literatura.

How to Cite

APA

de Carvalho, M. G., Rojas Cardozo, M. A., da Silva, V. C. and Werle, A. A. (2007). Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae). Revista Colombiana de Ciencias Químico-Farmacéuticas, 36(2). https://revistas.unal.edu.co/index.php/rccquifa/article/view/1617

ACM

[1]
de Carvalho, M.G., Rojas Cardozo, M.A., da Silva, V.C. and Werle, A.A. 2007. Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae). Revista Colombiana de Ciencias Químico-Farmacéuticas. 36, 2 (Jul. 2007).

ACS

(1)
de Carvalho, M. G.; Rojas Cardozo, M. A.; da Silva, V. C.; Werle, A. A. Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae). Rev. Colomb. Cienc. Quím. Farm. 2007, 36.

ABNT

DE CARVALHO, M. G.; ROJAS CARDOZO, M. A.; DA SILVA, V. C.; WERLE, A. A. Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae). Revista Colombiana de Ciencias Químico-Farmacéuticas, [S. l.], v. 36, n. 2, 2007. Disponível em: https://revistas.unal.edu.co/index.php/rccquifa/article/view/1617. Acesso em: 22 jan. 2025.

Chicago

de Carvalho, Mario Geraldo, Maritza A. Rojas Cardozo, Virginia Claudia da Silva, and Alceni Augusta Werle. 2007. “Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae)”. Revista Colombiana De Ciencias Químico-Farmacéuticas 36 (2). https://revistas.unal.edu.co/index.php/rccquifa/article/view/1617.

Harvard

de Carvalho, M. G., Rojas Cardozo, M. A., da Silva, V. C. and Werle, A. A. (2007) “Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae)”, Revista Colombiana de Ciencias Químico-Farmacéuticas, 36(2). Available at: https://revistas.unal.edu.co/index.php/rccquifa/article/view/1617 (Accessed: 22 January 2025).

IEEE

[1]
M. G. de Carvalho, M. A. Rojas Cardozo, V. C. da Silva, and A. A. Werle, “Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae)”, Rev. Colomb. Cienc. Quím. Farm., vol. 36, no. 2, Jul. 2007.

MLA

de Carvalho, M. G., M. A. Rojas Cardozo, V. C. da Silva, and A. A. Werle. “Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae)”. Revista Colombiana de Ciencias Químico-Farmacéuticas, vol. 36, no. 2, July 2007, https://revistas.unal.edu.co/index.php/rccquifa/article/view/1617.

Turabian

de Carvalho, Mario Geraldo, Maritza A. Rojas Cardozo, Virginia Claudia da Silva, and Alceni Augusta Werle. “Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae)”. Revista Colombiana de Ciencias Químico-Farmacéuticas 36, no. 2 (July 1, 2007). Accessed January 22, 2025. https://revistas.unal.edu.co/index.php/rccquifa/article/view/1617.

Vancouver

1.
de Carvalho MG, Rojas Cardozo MA, da Silva VC, Werle AA. Triterpenes and flavonoids isolate from the flowers of Laseguea erecta (Apocynaceae). Rev. Colomb. Cienc. Quím. Farm. [Internet]. 2007 Jul. 1 [cited 2025 Jan. 22];36(2). Available from: https://revistas.unal.edu.co/index.php/rccquifa/article/view/1617

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