((2R,4R)-4-{[(2,5-dibromophenyl)sulfonyl]amino}-1-{[(1,1-dimethylethyl)oxy]carbonyl}-2-pyrrolidinyl)methyl 1H-imidazole-1-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 methyl(phenylmethyl)lamine   、                                                                                                  Brine   、                                                                                                  crude material                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯   、                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 60.0h,
                                                                                                                以to give 1,1-dimethylethyl (2R,4R)-4-{[(2,5-dibromophenyl)sulfonyl]amino}-2-[({[methyl(phenyl methyl)amino]carbonyl}-oxy)methyl]-1-pyrrolidinecarboxylate as a crude material (445.7 mg, 56% purity by LC/MS)的产率得到(2R,4R)-4-{[(2,5-dibromophenyl)sulfonyl]amino}-2-[({[methyl(phenylmethyl)amino]carbonyl}oxy)methyl]-1-pyrrolidinecarboxylate