N-{4-[1-(2,6-difluorobenzyl)-5-{[methylamino]methyl}-2,4-dioxo-3-phenyl-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidin-6-yl]phenyl}-N-ethylurea 、
2-Acetamidoethyl methanesulfonate 在
N,N-二异丙基乙胺 、 potassium iodide 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 72.0h,
以37%的产率得到N-{2-[{[1-(2,6-difluorobenzyl)-6-(4-{[(ethylamino)carbonyl]amino}phenyl)-2,4-dioxo-3-phenyl-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidin-5-yl]methyl} (methyl) amino]ethyl}acetamide