1-(4-aminophenyl)-tetrahydro-pyrimidin-2-one hydrochloride 、 (+)-6-fluoro-8-(4-methyl-piperazin-1-yl)-chroman-2-carboxylic acid hydrochloride 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,
以54%的产率得到6-fluoro-8-(4-methyl-piperazin-1-yl)-N-[4-(2-oxo-tetrahydro-pyrimidin-1-yl)-phenyl]chroman-2-carboxamide