Synthesis and anti-HCV activity of 1-(1′,3′-O-anhydro-3′-C-methyl-β-d-psicofuranosyl)uracil
摘要:
Synthesis of a novel 1',2'-oxetane-uridine bearing a 2'-C-methyl substituent, [1-(1',3'-O-anhydro-3'-Cmethyl-beta-D-psicofuranosyl)uracil], is described. Key to its construction was the use of 6-O-(p-toluoy1)1,2:3,4-di-O-isopropylidene-3-C-methyl-D-psicofuranose as a nucleosidation substrate, which itself was derived from D-fructose. Anti-HCV activity was examined for the corresponding triphosphate which was not found to be an inhibitor of HCV NS5B 1b wild type polymerase in vitro. The 1',2'-oxetane uridine triphosphate without 2'-C-methyl substitution was similarly inactive, however, the guanosine analog displayed modest inhibition (IC50= 10 mu M). (C) 2014 Elsevier Ltd. All rights reserved.
Synthesis of some derivatives of 3-C-methyl-d-psicose, 3-C-methyl-d-fructose, and 6-deoxy-3-C-methyl-d-psicose
作者:Isidoro Izquierdo Cubero、Maria D. Portal Olea
DOI:10.1016/s0008-6215(00)85229-5
日期:1981.2
Abstract The synthesis of di- O -isopropylidene derivatives of 3- C -methyl- d -psicose ( 3 ) and 3- C -methyl- d -fructose by the reaction of 1,2:4,5-di- O -isopropylidene-β- d - erythro -hexo-2,3-diulo-2,6-pyranose ( 2 ) with methylmagnesium iodide and methyl-lithium is described. The reaction of 2 with diazomethane and reduction of the resulting epoxides gave the same branched-chain sugars. Isomerisation
Synthesis of 3-substituted furans from 3-C-substituted hexuloses
作者:Catherine Fayet、Jacques Gelas
DOI:10.1016/s0008-6215(00)90136-8
日期:1986.11
-fructopyranose gave the corresponding 3- C -substituted hexuloses. A simple procedure for the direct conversion of these C -alkylated or -arylated hexuloses (heating with pyridinium chloride) to new 3-substituted 5-hydroxymethyl-2-furancarboxaldehydes is described.