title: Diterpenes from Solidago rugosa.
abstract: Investigation of the roots and aerial parts of Solidago rugosa afforded the known diterpenes kolavenol, hardwickiic acid, (-)-kaur-16-en-19-oic acid, (+)-manool, (+)-3 beta-hydroxymanool, manoyl oxide and ent-abietic acid. In addition, the new labdane diterpene (+)-18-tigloyloxymanool and four new ent-abietanes were obtained. The structures of all known and new compounds were elucidated by spectroscopic methods, especially high-field 1H and 13C NMR, and inverse 1H-13C-correlation techniques, as well as chemical transformations. Six diterpenes were tested against Mycobacterium tuberculosis and M. avium, but showed no significant activities with minimum inhibitory concentrations of > 100 micrograms ml-1.
authors.affiliation: Department of Chemistry, College of Basic Sciences, Louisiana State University, Baton Rouge 70803, USA.
authors.forename: T
authors.initials: T
authors.lastname: Lu
authors.forename: D
authors.initials: D
authors.lastname: Vargas
authors.forename: S G
authors.initials: SG
authors.lastname: Franzblau
authors.forename: N H
authors.initials: NH
authors.lastname: Fischer
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010944:Plants / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared
chemical_list: D004224:Diterpenes