benzyl azetidin-3-yl(methyl)carbamate 、 2-(5-(3-((5-cyano-4-(4-fluorophenyl) thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)pyrimidin-2-yl)acetic acid 在
N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以79.13%的产率得到benzyl (1-(2-(5-(3-((5-cyano-4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)pyrimidin-2-yl)acetyl)azetidin-3-yl)(methyl)carbamate