title: Pseudostichoposide B--new triterpene glycoside with unprecedent type of sulfatation from the deep-water North-Pacific Sea cucumber Pseudostichopus trachus.
abstract: New triterpene disulfated tetraoside, pseudostichoposide B (1) has been isolated from the sea cucumber Pseudostichopus trachus. The structure of this glycoside has been deduced by the extensive analysis of NMR and mass-spectra and chemical evidence. Except for a common sulfate group at C-4 of the first xylose residue, pseudostichoposide B contains an additional sulfate group at C-3 of quinovose residue in the carbohydrate chain, not earlier found in sea cucumber glycosides.
authors.affiliation: Pacific Institute of Bioorganic Chemistry, the Far East Division of the Russian Academy of Sciences, 69002, Vladivostok, Russia.
authors.forename: Alexandra S
authors.initials: AS
authors.lastname: Silchenko
authors.forename: Sergey A
authors.initials: SA
authors.lastname: Avilov
authors.forename: Vladimir I
authors.initials: VI
authors.lastname: Kalinin
authors.forename: Anatoly I
authors.initials: AI
authors.lastname: Kalinovsky
authors.forename: Valentin A
authors.initials: VA
authors.lastname: Stonik
authors.forename: Alexey V
authors.initials: AV
authors.lastname: Smirnov
mesh_terms: D000818:Animals; D006027:Glycosides / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*; D012616:Sea Cucumbers; D014315:Triterpenes / Q000737:chemistry*
chemical_list: D006027:Glycosides; D010936:Plant Extracts; D014315:Triterpenes; C497795:pseudostichoposide B