6-(1-[2-(tetrahydro-2H-pyran-2-yloxy)ethyl]-1H-pyrazol-4-yl)[1,2,4]triazolo[4,3-a]-pyridine   、                                                                                      
N-溴代丁二酰亚胺(NBS)                                                                                                                                                                                              以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                                                        以245 mg of 3-bromo-6-(1-[2-(tetrahydro-2H-pyran-2-yloxy)ethyl]-1H-pyrazol-4-yl)[1,2,4]triazolo[4,3-a]pyridine are thus obtained in the form of a colourless lacquer的产率得到3-bromo-6-(1-[2-(tetrahydro-2H-pyran-2-yloxy)ethyl]-1H-pyrazol-4-yl)[1,2,4]-triazolo[4,3-a]pyridine