title: 1-Methyl anthraquinones and their biogenetic precursors from Stereospermum personatum.
abstract: Two novel 1(17)-methyl anthraquinones, sterequinone-A and -D, their biogenetic precursors sterequinone-B, -C, and a new naphthoquinone sterequinone-E along with a known naphthoquinone, sterekunthal-B, have been isolated from the petroleum ether extract of stem bark of Stereospermum personatum. Their structures were established using spectroscopic methods.
authors.affiliation: Natural Products Laboratory, Division of Organic Chemistry-1, Hyderabad-500 007, India.
authors.forename: U Sampath
authors.initials: US
authors.lastname: Kumar
authors.forename: P
authors.initials: P
authors.lastname: Aparna
authors.forename: R Jagadeeshwar
authors.initials: RJ
authors.lastname: Rao
authors.forename: T Prabhakar
authors.initials: TP
authors.lastname: Rao
authors.forename: J Madhusudana
authors.initials: JM
authors.lastname: Rao
mesh_terms: D000880:Anthraquinones / Q000737:chemistry* / Q000302:isolation & purification; D029402:Bignoniaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D024301:Plant Bark / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: D000880:Anthraquinones