A New ent-Clerodane Diterpene from Hymenaea courbaril var. altissima

Autor: Nogueira Raquel T., Giacomini Rosana A., Shepherd George J., Imamura Paulo M.
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