title: Use of circular dichroism to determine the absolute configuration of a pimarane diterpenoid from the southern African Sclerocroton integerrimus (Euphorbiaceae).
abstract: From the stem bark and leaves of Sclerocroton integerrimus, eight compounds, including 17-hydroxy-ent-pimara-8(14),15-dien-3-one (1), were isolated. The structures of the compounds were determined on the basis of spectroscopic analysis. The absolute configuration of 17-hydroxy-ent-pimara-8(14),15-dien-3-one was confirmed from electronic circular dichroism studies.
authors.forename: Vuyelwa J
authors.initials: VJ
authors.lastname: Tembu
authors.forename: Moses K
authors.initials: MK
authors.lastname: Langat
authors.forename: Neil R
authors.initials: NR
authors.lastname: Crouch
authors.forename: Dulcie A
authors.initials: DA
authors.lastname: Mulholland
mesh_terms: D045784:Abietanes / Q000737:chemistry*; D002942:Circular Dichroism; D019665:Euphorbiaceae / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry
chemical_list: D045784:Abietanes; D010936:Plant Extracts; C433018:pimarane