| Autor: |
Rodríguez-Gamboa Tatiana, Fernandes João B., Rodrigues Filho Edson, Silva M. Fátima das G. F. da, Vieira Paulo C., Barrios Ch. Mariano, Castro-Castillo Oscar, Victor Sandra R., Pagnocca Fernando C., Bueno Odair C., Hebling Maria J. A. |
| Jazyk: |
angličtina |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Journal of the Brazilian Chemical Society, Vol 12, Iss 3, Pp 386-390 (2001) |
| Druh dokumentu: |
article |
| ISSN: |
0103-5053 |
| Popis: |
Two new benzoic acid esters of triterpene alcohols [lup-20(29)-en-28-oic acid 3alpha,7beta-dibenzoate and 3alpha-hydroxy-lup-20(29)-en-28-oic acid 7beta-benzoate] were isolated from the stem bark of Picramnia teapensis Tul. The structures of these compounds were established on the basis of spectral analyses. Other known compounds, beta-sitosterol, estigmasterol, lupeol and epilupeol, were identified in mixture by GC-MS. The triterpene esters have not shown in-vitro inhibitory effect on the growth of Leucoagaricus gongylophorus (Fisher), referred also as Leucocoprinus gongylophorus (Heim), syn Rozites gongylophora (Möller), the symbiotic fungus cultivated by the leaf-cutting ant Atta sexdens L. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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