(R)-tert-butyl (1-(5-((6-chloro-3-propionyl-1,5-naphthyridin-4-yl)amino)pyridin-2-yl)piperidin-3-yl)carbamate 、
2-chloro-6-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol 以to afford the desired product (120 mg, 57%) as a solid的产率得到(R)-tert-butyl (1-(5-((6-(3-chloro-5-fluoro-4-hydroxyphenyl)-3-propionyl-1,5-naphthyridin-4-yl)amino)pyridin-2-yl)piperidin-3-yl)carbamate