title: 9alpha,20-Dihydroxyecdysone, a new natural ecdysteroid from Silene italica ssp. nemoralis.
abstract: A new natural compound, 9alpha,20-dihydroxyecdysone (1), and two known related compounds, 20-hydroxyecdysone and ecdysone, were isolated from the herb Silene italica ssp. nemoralis. Compound 1 is the first C-9 hydroxylated ecdysteroid with a cis-fused A/B ring junction to have been isolated from a plant source, and its structure was determined using a combination of spectroscopic techniques.
authors.affiliation: Department of Pharmacognosy, University of Szeged, Szeged, Eötvös utca 6, H-6720, Hungary.
authors.forename: Zita
authors.initials: Z
authors.lastname: Pongrácz
authors.forename: Mária
authors.initials: M
authors.lastname: Báthori
authors.forename: Gábor
authors.initials: G
authors.lastname: Tóth
authors.forename: András
authors.initials: A
authors.lastname: Simon
authors.forename: Marianna
authors.initials: M
authors.lastname: Mák
authors.forename: Imre
authors.initials: I
authors.lastname: Máthé
mesh_terms: D004440:Ecdysone / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D006814:Hungary; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D029751:Silene / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: C476839:9alpha,20-dihydroxyecdysone; D004440:Ecdysone