((6-chloro-[1,2,4]triazolo[1,5-a]pyridin-2-yl)methyl)triphenylphosphonium chloride 、 2-methyl-5-pyrrolidin-1-yl-2H-[1,2,4]triazole-3-carbaldehyde 以110 mg (91%) of the desired product were obtained as a light yellow solid的产率得到6-chloro-2-(2-(1-methyl-3-(pyrrolidin-1-yl)-1H-1,2,4-triazol-5-yl)vinyl)-[1,2,4]triazolo[1,5-a]pyridine