To 5-(7-(cyclopropylamino)-3-formylpyrazolo[1,5-a]pyrimidin-5-yl)thiophene-2-carboxylic acid (30 mg, 0.091 mmol), EDCI (19 mg, 0.10 mmol), Et3N (14 μL, 0.10 mmol), and HOBt (14 mg, 0.10 mmol) in 2 mL of DMF pre-stirred for 5 minutes was added 3-methoxypropylamine (10 μL, 0.10 mmol). The reaction mixture was stirred at room temperature for 1 hour. The reaction was diluted with ethyl acetate, washed with H2O, brine, dried over MgSO4, filtered, and evaporated to dryness to provide 30 mg of 5-(7-(cyclopropylamino)-3-formylpyrazolo[1,5-a]pyrimidin-5-yl)-N-(3-methoxypropyl)thiophene-2-carboxamide (83%). LCMS (M+1=400)
