Synthesis and characterization of the hexenuronic acid model methyl 4-deoxy-β-l-threo-hex-4-enopyranosiduronic acid
                                
                                    
                                        作者:Immanuel Adorjan、Anna-Stiina Jääskeläinen、Tapani Vuorinen                                    
                                    
                                        DOI:10.1016/j.carres.2006.06.012
                                    
                                    
                                        日期:2006.10
                                    
                                    A facile synthetic scheme for the preparation of methyl 4-deoxy-beta-L-threo-hex-4-enopyranosiduronic acid utilizing the commercially available methyl a-D-galactopyranoside as starting material has been developed. The synthesis sequence comprises six high yielding reaction steps: TEMPO oxidation, acetylation, methanolysis of the lactone, acetylation, P-elimination, and final removal of the protecting groups. Only one column chromatographic purification is needed throughout the whole sequence. The overall yield is 60%. The final product has been characterized by NMR, Raman, UVRR, FTIR, and HRMS. (c) 2006 Elsevier Ltd. All rights reserved.