Triethylamine → 5-Amino-2-(2-furyl)-7-(4-(imidazo[1,2-a]pyridin-2-ylmethyl)piperazinyl)[1,2,4]triazolo[1,5-c]pyrimidine

Participants

Reaction Conditions

Reaction Steps

In 7.5 mL of DMF, 500 mg (1.75 mmol) of Compound F and 582 mg (3.51 mmol) of imidazo[1,2-a]pyridin-2-ylmethyl chloride were dissolved. The solution was cooled to 0° C. in an ice bath, and then 1.6 mL of triethylamine was added thereto, followed by stirring at room temperature overnight. After completion of the reaction, water was added to the reaction mixture and a 1.0 mol/L sodium hydroxide solution was further added thereto to adjust the solution to be basic. Then, the mixture was extracted by adding chloroform, and the organic layer was washed with water and brine, and then dried over anhydrous magnesium sulfate. After evaporation of the solvent, the resulting residue was purified by silica gel column chromatography (2% methanol-chloroform) and then recrystallized from ethanol to obtain 374 mg of Compound 15 as white powder (yield: 51%).

Provenance & Evidence