N,N'-羰基二咪唑   、                                                                                      
4-(8-((2,4-dimethoxybenzyl)amino)-3-((3S,6S)-6-(hydroxymethyl)piperidin-3-yl)imidazo[1,5-a]pyrazin-1-yl)-N-(4-(trifluoromethyl)pyridin-2-yl)benzamide                                                                                                                                                              在
                                                                                                                                         
4-二甲氨基吡啶                                                                                                                                                                                                                               水   、                                                                                                  Brine   、                                                                                                  
Sodium sulfate-III   、                                                                                                  
4-(8-((2,4-dimethoxybenzyl)amino)-3-((6S,8aS)-3-oxohexahydro-1H-oxazolo[3,4-a]pyridin-6-yl)imidazo[1,5-a]pyrazin-1-yl)-N-(4-(trifluoromethyl)pyridin-2-yl)benzamide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以to give 110 mg crude of the title compound, 4-(8-((2,4-dimethoxybenzyl)amino)-3-((6S,8aS)-3-oxohexahydro-1H-oxazolo[3,4-a]pyridin-6-yl)imidazo[1,5-a]pyrazin-1-yl)-N-(4-(trifluoromethyl)pyridin-2-yl)benzamide, which的产率得到4-(8-((2,4-dimethoxybenzyl)amino)-3-((6S,8aS)-3-oxohexahydro-1H-oxazolo[3,4-a]pyridin-6-yl)imidazo[1,5-a]pyrazin-1-yl)-N-(4-(trifluoromethyl)pyridin-2-yl)benzamide