1-[2-(1-aminocyclohexyl)ethyl]tetrahydropyrimidin-2(1H)-one   、                                                                                      
O-[bis(benzyloxy)phosphoryl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-D-tyrosine                                                                                                                                                              在
                                                                                                                                                                                 
1-羟基苯并三唑   、                                                                                                  
N,N'-二异丙基碳二亚胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以50%的产率得到O-[bis(benzyloxy)phosphoryl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-N'-{1-[2-(2-oxotetrahydropyrimidin-1(2H)-yl)ethyl]cyclohexyl}-L-tyrosinamide