对氟苄胺 、 4-(4-Chloro-6-ethyl-thieno-[2,3-d]-pyrimidin-2-yl)-benzoic acid methylester 以yields 4-[4-(4-fluorobenzylamino)-6-ethyl-thieno-[2,3-d]-pyrimidin-2-yl]-benzoic acid methylester的产率得到methyl 4-[4-(4-fluorobenzylamino)-6-ethyl-thieno-[2,3-d]-pyrimidin-2-yl]-benzoate