Trifluoroacetic acid → 4-(2-(4-Cyanophenylamino)thieno[2,3-d]pyrimidin-4-yloxy)-3,5-dimethylbenzonitrile

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-(2-chlorothieno[2,3-d]pyrimidin-4-yloxy)-3,5-dimethylbenzonitrile (188 mg, 0.59 mmol), TFA (0.37 mL, 4.75 mmol) in TFE (2.5 mL) was added 4-aminobenzonitrile (280 mg, 2.37 mmol) in a scaled tube. The reaction was stirred at 90° C. for 2 d. Reaction-mixture was diluted with ethyl acetate (5 mL) and washed with saturated NaHCO3 (3×10 mL). The combined organic layers were washed with brine, dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified by HPLC afforded the product as white solid (34 mg, 14%):

Provenance & Evidence