title: Novel synthesis of the glycosidase inhibitor deoxymannojirimycin and of a synthetic precursor D-lyxo-hexos-5-ulose.
abstract: [reaction: see text]. The synthesis of D-lyxo-hexos-5-ulose (5-ketomannose, 1,5-dicarbonyl sugar), a synthetic precursor to the glycoprocessing inhibitor deoxymannojirimycin, was carried out by an in situ epoxidation and hydrolysis of a trimethylsilyl-protected 6-deoxyhex-5-enopyranoside followed by facile removal of the protecting groups. A novel nine-step synthesis of deoxymannojirimycin has also been achieved from methyl alpha-D-mannopyranoside; this involved methanolysis of epoxides derived from an acetylated 1-azido-6-deoxyhex-5-enopyranoside followed by deprotection and catalytic hydrogenation.
authors.affiliation: Chemistry Department, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland.
authors.forename: J L
authors.initials: JL
authors.lastname: O'Brien
authors.forename: M
authors.initials: M
authors.lastname: Tosin
authors.forename: P V
authors.initials: PV
authors.lastname: Murphy
mesh_terms: D017485:1-Deoxynojirimycin / Q000138:chemical synthesis*; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis; D000998:Antiviral Agents / Q000138:chemical synthesis; D002626:Chemistry, Pharmaceutical; D004791:Enzyme Inhibitors / Q000138:chemical synthesis*; D004852:Epoxy Compounds / Q000737:chemistry; D006026:Glycoside Hydrolases / Q000037:antagonists & inhibitors*; D008358:Mannose / Q000031:analogs & derivatives / Q000138:chemical synthesis*; D008766:Methylmannosides / Q000737:chemistry
chemical_list: C448621:5-ketomannose; D000900:Anti-Bacterial Agents; D000998:Antiviral Agents; D004791:Enzyme Inhibitors; D004852:Epoxy Compounds; D008766:Methylmannosides; D017485:1-Deoxynojirimycin; C008466:methylmannoside; D006026:Glycoside Hydrolases; D008358:Mannose