title: Isolation and structure elucidation of viscoazucine, a novel sesquiterpene from Polygonum viscosum.
abstract: A new sesquiterpene, 1,4-dimethoxycarbonyl-7-(1-methylethyl)- 3,3a,6,7,8,8a-hexahydroazulene (viscoazucine) (1), and a known flavone, 3',5,7-trihydoxy-3,4',5'-trimethoxyflavone (4), have been isolated from Polygonum viscosum. The structures of these compounds were elucidated by spectroscopic analyses, notably UV, MS and NMR.
authors.affiliation: Department of Pharmacy, University of Dhaka, Bangladesh. bkdatta321@yahoo.com
authors.forename: B K
authors.initials: BK
authors.lastname: Datta
authors.forename: M A
authors.initials: MA
authors.lastname: Rashid
authors.forename: J K
authors.initials: JK
authors.lastname: Kundu
authors.forename: A S
authors.initials: AS
authors.lastname: Rouf
authors.forename: S D
authors.initials: SD
authors.lastname: Sarker
authors.forename: S K
authors.initials: SK
authors.lastname: Datta
mesh_terms: D052176:Azulenes; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D009390:Nepal; D010946:Plants, Medicinal / Q000737:chemistry*; D019664:Polygonaceae / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet
chemical_list: C433777:3',5,7-trihydoxy-3,4',5'-trimethoxyflavone; D052176:Azulenes; D005419:Flavonoids; D012717:Sesquiterpenes; C433776:viscoazucine