4-methyl-1,2-oxazolidin-4-ol hydrochloride 、 N-(3-methyl-4-((1-methyl-1H-benzo[d]imidazol-5-yl)oxy)phenyl)-6-(methylsulfonyl)pyrimido[5,4-d]pyrimidin-4-amine 在
N,N-二异丙基乙胺 作用下,
以
二甲基亚砜 为溶剂,
反应 4.0h,
以25%的产率得到4-methyl-2-(8-((3-methyl- 4-((1-methyl-1H-benzo[d]imidazol-5-yl)oxy)phenyl)amino)pyrimido[5,4-d]pyrimidin-2-yl)isoxazolidin-4-ol