methyl (S)-4-((2-((methylsulfonyloxy)methyl)-6-(1-phenylethylcarbamoyl)pyridin-4-yl)ethynyl)benzoate   、                                                                                      
1,4,7-triazacyclononane trihydrochloride                                                                                                                                                              在
                                                                                                                                                                                 
potassium carbonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以55%的产率得到6-[[4,7-bis[[6-[C-hydroxy-N-[(1S)-1-phenylethyl]carbonimidoyl]-4-[2-(4-methoxycarbonylphenyl)ethynyl]pyridin-2-yl]methyl]-1,4,7-triazonan-1-yl]methyl]-4-[2-(4-methoxycarbonylphenyl)ethynyl]-N-[(1S)-1-phenylethyl]pyridine-2-carboximidic acid