摘要:
Disclosed herein are methods for preparing [1,2,4]triazolo[4,3-a]pyridines, particularly (R)-6-(1-(8-fluoro-6-(l-methyl4H-pyrazol-4-yl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)ethyl)-3-(2- methoxyethoxy)- 1,6-naphthyridin-5(6H)-one, and precursors thereof.