title: Crotoflavol, a new phenanthrene from Croton flavens.
abstract: Phytochemical investigations of the leaves of Croton flavens L. var. balsamiferus (Jacq.) Muell. Arg. has led to the isolation of the novel 2,5-dihydroxy-3,6-dimethoxyphenanthrene crotoflavol. The structure was elucidated on the basis of spectroscopic evidence. This is the first report on the isolation of a phenanthrene from a Croton species.
authors.affiliation: Department Pharmazie-Zentrum für Pharmaforschung, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, D-81377 Munich, Germany.
authors.forename: W J
authors.initials: WJ
authors.lastname: Eisenreich
authors.forename: F
authors.initials: F
authors.lastname: Bracher
mesh_terms: D029802:Croton / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010616:Phenanthrenes / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D010616:Phenanthrenes; C445402:crotoflavol