| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000198556 |
| ISSN: | 0100-4042 |
| Authors: | Silva, Gilson Cruz da1 Valente, Ligia Maria Marino Patitucci, Maria Lucia Pinto, Angelo da Cunha Menezes, Nanuza Luiza de |
| Institutions: | 1Universidade Federal do Rio de Janeiro, Instituto de Quimica, Rio de Janeiro. Brasil 2Universidade de Sao Paulo, Instituto de Biologia, Sao Paulo. Brasil |
| Year: | 2001 |
| Season: | Sep-Oct |
| Volumen: | 24 |
| Number: | 5 |
| Pages: | 619-625 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental, descriptivo |
| English abstract | From the hexane extract of leaves, stem and roots, of Vellozia aff. carunculares, fourteen cleistanthane diterpenoids were detected by HRGC-MS, through the analysis of their fragmentation patterns. Comparison of their MS spectra with those of authentic standards previously isolated from other species of the family Velloziaceae allowed the identification, with a high degree of confidence, of eigth known cleistanthane diterpenoids. Of these, four were isolated and identified from their MS, IR and 1H and 13C NMR spectra, as the known cleistantha-8,11,13-trien-7-one, cleistantha-8,11,13-trien-3,7-dione, cleistantha-1,8,11,13-tetraen-3,7-dione and the first reported 6-a-hydroxy-cleistantha-8,11,13-trien-7-one. The triterpenoid b-amyrin was also isolated |
| Disciplines: | Química |
| Keyword: | Fitoquímica, Química analítica, Terpenos, Vellozia aff. carunculares, Velloziaceae, Cleistantano, Africa, América del Sur |
| Keyword: | Chemistry, Analytical chemistry, Phytochemistry, Terpenes, Vellozia aff. Carunculares, Velloziaceae, Cleistanthane, South America, Africa |
| Full text: | Texto completo (Ver HTML) |
