1-piperidin-4-yl-3,4a,5,7,8,8a-hexahydro-2H-pyrano[3,4-b][1,4]oxazine 、
5-methyl-6-[[(2R,6S)-6-[4-(trifluoromethoxy)phenyl]oxan-2-yl]methylamino]pyrimidine-4-carboxylic acid 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 0.08h,
生成 [4-[(4aR,8aR)-3,4a,5,7,8,8a-hexahydro-2H-pyrano[3,4-b][1,4]oxazin-1-yl]piperidin-1-yl]-[5-methyl-6-[[(2R,6S)-6-[4-(trifluoromethoxy)phenyl]oxan-2-yl]methylamino]pyrimidin-4-yl]methanone 、 [4-[(4aS,8aR)-3,4a,5,7,8,8a-hexahydro-2H-pyrano[3,4-b][1,4]oxazin-1-yl]piperidin-1-yl]-[5-methyl-6-[[(2R,6S)-6-[4-(trifluoromethoxy)phenyl]oxan-2-yl]methylamino]pyrimidin-4-yl]methanone