1-(4-氟苯基氨基甲酰基)环丙烷羧酸 在
DIPEA 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以67%的产率得到tert-butyl 2-(6-(7-(2-fluoro-4-(1-(4-fluorophenylcarbamoyl)cyclopropanecarboxamido)phenoxy)thieno[3,2-b]pyridin-2-yl)pyridin-3-yl)ethyl(2-methoxyethyl)carbamate