title: Polystachyne F, a 5,10-seco-neoclerodane from Salvia polystachya.
abstract: A new 5,10-seco-neoclerodane diterpene, polystachyne F (1), was isolated from the aerial parts of Salvia polystachya. Its structure was established on the basis of its spectroscopic properties and X-ray crystallographic analysis. Some correlations in the NOESY spectrum of 1 suggested the existence of a conformational equilibrium.
authors.affiliation: Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, DF México.
authors.forename: Alfredo
authors.initials: A
authors.lastname: Ortega
authors.forename: Elihú
authors.initials: E
authors.lastname: Bautista
authors.forename: Emma
authors.initials: E
authors.lastname: Maldonado
mesh_terms: D018360:Crystallography, X-Ray; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D045785:Diterpenes, Clerodane; D005663:Furans / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D008968:Molecular Conformation; D010936:Plant Extracts / Q000737:chemistry; D027544:Salvia / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013237:Stereoisomerism
chemical_list: D004224:Diterpenes; D045785:Diterpenes, Clerodane; D005663:Furans; D010936:Plant Extracts; C468586:neoclerodane; C514040:polystachyne F