N-allyl-N-methyl-oxalamic acid 、 [2-[(2-Ethenyl-4-fluorophenyl)methylcarbamoyl]-10-(methylamino)-4-oxo-7,8,9,10-tetrahydro-6H-pyrimido[1,2-a]azepin-3-yl] methanesulfonate 在
chloro-N,N,N',N'-bis(tetramethylene)formamidinium hexafluorophosphate 、
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 1.0h,
以63.6%的产率得到[2-[(2-ethenyl-4-fluorophenyl)methylcarbamoyl]-10-[methyl-[2-[methyl(prop-2-enyl)amino]-2-oxoacetyl]amino]-4-oxo-7,8,9,10-tetrahydro-6H-pyrimido[1,2-a]azepin-3-yl] methanesulfonate