1-{5-[(2,5-dioxopyrrolidin-1-yl)oxy]-5-oxopentyl}-3-{4-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]butyl}urea   、                                                                                                                                                                                                                                                    在
                                                                                                                                                                                 sodium chloride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水   、                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以37%的产率得到methyl (2-deoxy-3,4-di-O-methyl-2-({5-[({4-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]butyl}carbamoyl)amino]pentanoyl}amino)-6-O-sulfonato-α-D-glucopyranosyl)-(1→4)-(2,3-di-O-methyl-β-D-glucopyranosyluronate)-(1→4)-(2,3,6-tri-O-sulfonato-α-D-glucopyranosyl)-(1→4)-(2,3-di-O-methyl-α-L-idopyranosyluronate)-(1→4)-(2,3,6-tri-O-sulfonato-α-D-glucopyranoside) sodium