5-methyl-4-tetrahydrofuran-3-ylthieno[2,3-d]pyrimidine-6-carboxylic acid 、
N-methyl-1-(1,8-naphthyridin-4-yl)methanamine 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
四氢呋喃 为溶剂,
反应 16.17h,
以17.3%的产率得到N,5-dimethyl-N-(1,8-naphthyridin-4-ylmethyl)-4-tetrahydrofuran-3-ylthieno[2,3-d]pyrimidine-6-carboxamide