10-{6-[N-(pyridine-2-ylmethyl)-N-(thiophen-2-ylmethyl)amino]methyl}-pyridine-2-ylmethyl-1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid   、                                                                                      
europium(III) trifluoromethanesulfonate                                                                                                                                                                                              以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以89%的产率得到Eu(10-[6[(pyridine-2-ylmethyl)(thiophen-2-ylmethyl)amino]methyl]-pyridine-2-ylmethyl-1,4,7,10-tetraazacyclododecane-1,4,7-triacetate)