title: Further sesquiterpenes from Polygonum viscosum (Polygonaceae).
abstract: Two new sesquiterpenes, 4-methoxycarbonyl-7-(1-methylethyl)-6-oxo-3,3a,7,8,8a-pentahydroazulene-1-carboxylic acid (viscoazusone) and 1,4-dimethoxy-carbonyl-7-(1-methylethyl)-6-oxo-3,3a,7,8,8a-pentahydroazulene (viscoazulone), were isolated from the whole plant of Polygonum viscosum. The structures of these compounds were determined by spectroscopic means.
authors.affiliation: Department of Pharmacy, University of Dhaka, Bangladesh. bkdatta321@yahoo.com
authors.forename: Bidyut Kanti
authors.initials: BK
authors.lastname: Datta
authors.forename: Sadhan Kumar
authors.initials: SK
authors.lastname: Datta
authors.forename: Mohammad Abdur
authors.initials: MA
authors.lastname: Rashid
authors.forename: Joydeb Kumar
authors.initials: JK
authors.lastname: Kundu
authors.forename: Choudhury Mahmood
authors.initials: CM
authors.lastname: Hasan
authors.forename: Satyajit Dey
authors.initials: SD
authors.lastname: Sarker
mesh_terms: D052176:Azulenes; D001459:Bangladesh; D002851:Chromatography, High Pressure Liquid; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D019664:Polygonaceae / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D052176:Azulenes; D012717:Sesquiterpenes; C458903:viscoazulone; C458902:viscoazusone