| Journal: | Journal of the Brazilian Chemical Society |
| Database: | PERIÓDICA |
| System number: | 000311117 |
| ISSN: | 0103-5053 |
| Authors: | Nogueira, Raquel T1 Giacomini, Rosana A Shepherd, George J2 Imamura, Paulo M |
| Institutions: | 1Universidade Estadual de Campinas, Instituto de Quimica, Campinas, Sao Paulo. Brasil 2Universidade Estadual de Campinas, Instituto de Biologia, Campinas, Sao Paulo. Brasil |
| Year: | 2002 |
| Season: | Jun |
| Volumen: | 13 |
| Number: | 3 |
| Pages: | 389-391 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | A new ent-clerodane and two known ent-labdanes were isolated from the barks of Hymenaea courbaril var. altissima (Ducke). The new diterpene was identified, after esterification with diazomethane, as methyl (-)-(5R,8S,9S,10R)-clerod-3-en-15-oate and known diterpenes were identified as methyl (-)-copalate and methyl (-)-eperuate. From the EtOAc extract of seed pods a known methyl (-)-zanzibarate was isolated. The structures of isolated compounds were elucidated based on spectroscopic studies |
| Portuguese abstract | Da casca do tronco de Hymenaea courbaril var. altissima (Ducke) foi isolado um novo ent-clerodano na forma de éster metílico, após esterificação com diazometano, o (-)-(5R,8S,9S,10R)-clerod-3-en-15-oato de metila. Foram isolados também dois ent-labdanos conhecidos: o (-)-copalato de metila e (-)-eperuato de metila. Do extrato AcOEt do epicarpo foi isolado, após esterificação com diazometano, o (-)-zanzibarato de metila. As estruturas dos compostos foram elucidadas com base na análise de dados espectroscópicos |
| Disciplines: | Química, Biología |
| Keyword: | Fitoquímica, Angiospermas, Diterpenos, Ent-clerodano, Ent-labdano, Hymenaea courbaril, Fabaceae |
| Keyword: | Chemistry, Biology, Phytochemistry, Angiosperms, Diterpenes, Ent-clerodane, Ent-labdane, Hymenaea courbaril, Fabaceae |
| Full text: | Texto completo (Ver HTML) |
