A New ent-Clerodane Diterpene from Hymenaea courbaril var. altissima
Autor: | Nogueira Raquel T., Giacomini Rosana A., Shepherd George J., Imamura Paulo M. |
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Jazyk: | angličtina |
Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Journal of the Brazilian Chemical Society, Vol 13, Iss 3, Pp 389-391 (2002) |
Druh dokumentu: | article |
ISSN: | 0103-5053 29302617 |
Popis: | 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. |
Databáze: | Directory of Open Access Journals |
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