Synthesis and evaluation of antiviral activity of 2?-deoxyuridines with 5-methylene-2-thiohydantoin substituents in the 5-position
                                
                                    
                                        作者:A. A. El-Barbary、A. I. Khodair、E. B. Pedersen、C. Nielsen                                    
                                    
                                        DOI:10.1007/bf00811853
                                    
                                    
                                        日期:1994.5
                                    
                                    1-(2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-D-erythro-pentofuranosyl)-5-formyluracil (4) was synthesized from 5-formyluracil and an appropriate methyl glycoside and condensed with 2-thiohydantoin (5a) and its corresponding 3-phenyl derivative 5b to give 5-[1-(2-deoxy-3,5-bis-O-(4-methylbenzoyl)-D-erythro-pentofuranosyl)uracil-5-ylmethylene]-2-thiohydantoins 7a and 7b, respectively, in 65-70% yield. They were deprotected with sodium methoxide in methanol to give both anomers of the free nucleosides. In a different route 5-formyluracil (1) was condensed with 5b and subsequently with an appropriate methyl glycoside to give 7b.