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Phytochemical and Pharmacognostic Investigation of Bauhinia forficata Link (Leguminosae)

Karina L. da Silva

a

, Maique Weber Biavatti

a

, Silvana Nair Leite

a

, Rosendo A. Yunes

b

,

Franco Delle Monache

c

, Valdir Cechinel Filho

a,

*

a Nu´cleo de Investigac¸o˜es Quı´mico-Farmaceˆuticas (NIQFAR)/CCS, Universidade do Vale do Itajaı´-UNIVALI, 88302Ð202, Itajaı´-SC, Brazil.

Fax: 47 341 7601.

E-mail: cechinel@mbox1.univali.br

b Departamento de Quı´mica, Universidade Federal de Santa Catarina (UFSC), Floriano´polis, SC, Brazil

c Centro Chimica Recettori, CNR, Rome, Italy

* Author for correspondence and reprint requests Z. Naturforsch.55 c,478Ð480 (2000);

received February 21/March 28, 2000

Bauhinia forficata, Kaempferitrin,β-Sitosterol

We have isolated two phytoconstituents present in the B. forficataleaves, a medicinal plant employed in folk medicine specially for the treatment of diabetes. These compounds were isolated by column chromatography and identified as β-sitosterol and kaempferol-3,7-dir- hamnoside (kaempferitrin) by spectroscopical data and comparison with authentic samples. A comparative study with different parts of the plant indicated that the latter is present only in the leaves, suggesting that it might be useful for a suitable quality control of phytoth- erapeutics which contain this organ ofB. forficatain its composition.

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