title: Clerodane-type diterpenes from the seed pods of Hymenaea courbaril var. stilbocarpa.
abstract: Three known and two new diterpenes were isolated from the ethyl acetate extract of Hymenaea courbaril var. stilbocarpa seed pods. One of the compounds was elucidated as (5R*,8S*,9S*,10R*)-cleroda-3,13E-dien-15-oic acid and the other was elucidated, after treatment with diazomethane, as methyl (5S*,8S*,9S*,10R*)-cleroda-3,13E-dien-15-oate. The known diterpenes were identified as (-)-ozic acid, (-)-isoozic acid and (-)-kovalenic acid which were characterized as their methyl ester derivatives.
authors.affiliation: Instituto de Química, UNICAMP, CP 6154, Campinas, 13083-970, SP, Brazil.
authors.forename: R T
authors.initials: RT
authors.lastname: Nogueira
authors.forename: G J
authors.initials: GJ
authors.lastname: Shepherd
authors.forename: A
authors.initials: A
authors.lastname: Laverde
authors.forename: A J
authors.initials: AJ
authors.lastname: Marsaioli
authors.forename: P M
authors.initials: PM
authors.lastname: Imamura
mesh_terms: D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D045785:Diterpenes, Clerodane; D007887:Fabaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*
chemical_list: D004224:Diterpenes; D045785:Diterpenes, Clerodane