title: Labdane and pimarane diterpenes from Croton joufra.
abstract: From the chloroform extract of the leaves of Croton joufra, the diterpenes 2alpha,3alpha-dihydroxy-labda-8(17),12(13),14(15)-triene and 3beta-hydroxy-19-O-acetyl-pimara-8(9),15-dien-7-one, were isolated. Their structures were established by spectroscopic methods. One of the compounds showed weak lethality in the brine shrimp assay.
authors.affiliation: Department of Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok, Thailand. somyote@ram1.ru.ac.th
authors.forename: S
authors.initials: S
authors.lastname: Sutthivaiyakit
authors.forename: P
authors.initials: P
authors.lastname: Nareeboon
authors.forename: N
authors.initials: N
authors.lastname: Ruangrangsi
authors.forename: S
authors.initials: S
authors.lastname: Ruchirawat
authors.forename: S
authors.initials: S
authors.lastname: Pisutjaroenpong
authors.forename: C
authors.initials: C
authors.lastname: Mahidol
mesh_terms: D045784:Abietanes; D002725:Chloroform / Q000737:chemistry; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D019665:Euphorbiaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation
chemical_list: D045784:Abietanes; D004224:Diterpenes; C433017:labdane; C433018:pimarane; D002725:Chloroform