7-Phenyl-6,7-dihydro-5H-[1,2,4]triazolo[5,1-b][1,3]oxazin-2-ylamine   、                                                                                      
1-(6-methyl-pyrimidin-4-yl)-piperidin-4-one   、                                                                                      
二氯甲烷                                                                                                                                                              在
                                                                                                                                                                                 silica gel                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
methanol-dichloromethane                                                                                  为溶剂,
                                                                                                                                                                                        以The title compound was obtained as a light yellow solid (yield: 17%) after column chromatography on silica gel using a gradient from methylene chloride to methylene chloride/methanol 19:1 (v/v) as eluent的产率得到N-(1-(6-methylpyrimidin-4-yl)piperidin-4-yl)-7-phenyl-6,7-dihydro-5H-[1,2,4]triazolo[5,1-b][1,3]oxazin-2-amine