title: [Synthesis of new olean-18(19)-ene derivatives from allobetulin].
abstract: Effective synthesis of new olean-18(19)-ene triterpenoids based on interaction of allobetulin or its acetate with phosphorous oxychloride in pyridine under reflux is described. The structures of the synthesized 17-chloromethyl-oleane-18(19)-enes have been established with the help of NMR-spectroscopy and X-Ray analysis.
authors.forename: O B
authors.initials: OB
authors.lastname: Kazakova
authors.forename: É F
authors.initials: ÉF
authors.lastname: Khusnutdinova
authors.forename: G A
authors.initials: GA
authors.lastname: Tolstikov
authors.forename: K Iu
authors.initials: KIu
authors.lastname: Suponitskiĭ
mesh_terms: D015394:Molecular Structure; D009828:Oleanolic Acid / Q000138:chemical synthesis* / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry*; D000094062:Betulinic Acid
chemical_list: D009828:Oleanolic Acid; D014315:Triterpenes; C002503:betulin; D000094062:Betulinic Acid