4-(2,4,6-trimethoxyphenyl)-6-(bromomethyl)pyridine-2-carboxylic acid ethyl ester   、                                                                                      
1,4,7-三氮杂环壬烷                                                                                                                                                              在
                                                                                                                                                                                 silica gel                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以yielded the title compound (0.17 g, 62%)的产率得到ethyl 6-((4,7-bis((6-(ethoxycarbonyl)-4-(2,4,6-trimethoxyphenyl)-pyridin-2-yl)methyl)-1,4,7-triazonan-1-yl)methyl)-4-(2,4,6-trimethoxyphenyl)-pyridine-2-carboxylate