1-Boc-5-methyl-1,4,5,6-tetrahydro-2-(4-aminophenyl)pyrimidine 、
2,5-二吡啶羧酸 在
1-羟基苯并三唑 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 15.0h,
以38%的产率得到tert-butyl 5-methyl-2-[4-[[6-[[4-[5-methyl-1-[(2-methylpropan-2-yl)oxycarbonyl]-5,6-dihydro-4H-pyrimidin-2-yl]phenyl]carbamoyl]pyridine-3-carbonyl]amino]phenyl]-5,6-dihydro-4H-pyrimidine-1-carboxylate