Tert-butyl 2-[[10-[[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]carbamoyl]-2,8-dioxo-1,5,7,11-tetrazatricyclo[7.3.0.03,7]dodeca-3,5,9,11-tetraene-4-carbonyl]amino]acetate   、                                                                                      
1,1-dimethylethyl N6-{[(1,1-dimethylethyl)oxy]carbonyl}-L-lysinate hydrochloride                                                                                                                                                              在
                                                                                                                                                                                 
N,N-二异丙基乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 72.0h,
                                                                                                                以61%的产率得到tert-butyl (2S)-6-[(2-methylpropan-2-yl)oxycarbonylamino]-2-[[5-[[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]carbamoyl]-1H-imidazole-4-carbonyl]amino]hexanoate