[7-(3-chlorophenyl)-1-oxo-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazin-4-yl]acetic acid 、 (1S)-1-cyclohexyl-2-(4-methylpiperazin-1-yl)ethanamine trihydrochloride 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
1,4-二氧六环 为溶剂,
反应 2.25h,
以5%的产率得到2-[(4R)-7-(2-aminopyrimidin-4-yl)-1-oxo-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazin-4-yl]-N-[(1S)-1-cyclohexyl-2-(4-methyl piperazin-1-yl)ethyl]acetamide