title: The interaction of per-O-acetylated acyclic 1-(1-butylindol-3-yl)-1-deoxy-ketoses with silylated uracil.
abstract: The per-O-acetylated open chain derivatives of 1-(1-butylindol-3-yl)-1-deoxy-1-L-sorbose and 1-(1-butylindol-3-yl)-1-deoxy-L-tagatose, which are readily available by alkaline degradation of 1-butylascorbigen followed by acetylation, were used in a nucleoside-type synthesis. The interaction of these ketoses derivatives with bis-(trimethylsilyl)-uracil yielded in each case a mixture of (E)-2,4,5,6-tetra-O-acetyl-1-(1-butylindol-3-yl)-1,3-dideoxy-3-(uracil-1-yl)-L-xylo-hexa-1-enitol and (E)-2,4,5,6-tetra-O-acetyl-1-(1-butylindol-3-yl)-1,3-dideoxy-3-(uracil-1-yl)-L-lyxo-hexa-1-enitol, which were separated by preparative HPLC. The deacetylation of each of these compounds by MeONa in MeOH produced a mixture of 1-(1-butylindol-3-yl)-1,3-dideoxy-4-O-methyl-3-(uracil-1-yl)-alpha-L-sorbopyranose and 1-(1-butylindol-3-yl)-1,3-dideoxy-4-O-methyl-3-(uracil-1-yl)-beta-D-fructopyranose, which were also separated by HPLC, the structures were confirmed by NMR.
authors.affiliation: Gause Institute of New Antibiotics, Russian Academy of Medical Sciences, Moscow, Russia.
authors.forename: S N
authors.initials: SN
authors.lastname: Lavrenov
authors.forename: N P
authors.initials: NP
authors.lastname: Solovyeva
authors.forename: M I
authors.initials: MI
authors.lastname: Reznikova
authors.forename: O S
authors.initials: OS
authors.lastname: Anisimova
authors.forename: M N
authors.initials: MN
authors.lastname: Preobrazhenskaya
mesh_terms: D007661:Ketoses / Q000737:chemistry / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D014498:Uracil / Q000031:analogs & derivatives* / Q000737:chemistry / Q000378:metabolism
chemical_list: D007661:Ketoses; D014498:Uracil