4-(tert-butoxycarbonyl)-1-[1-(6-chloro-4-pyrimidinyl)-4-hydroxypiperidin-4-ylmethyl]piperazin-2-one                                                                                                                                                              在
                                                                                                                                         
钯                                                                                                                                                                                                                               氢气   、                                                                                                  silica gel   、                                                                                                  
甲醇乙酸乙酯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以to give colorless amorphous of 4-(tert-butoxycarbonyl)-1-[4-hydroxy-1-(4-pyrimidinyl)piperidin-4-ylmethyl]piperazin-2-one (527 mg)的产率得到4-(tert-butoxycarbonyl)-1-[4-hydroxy-1-(4-pyrimidinyl)piperidin-4-ylmethyl]piperazin-2-one