Ethyl orthoformate → HCID 117771590, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-amino-5-bromo-N-(2-fluorophenyl)nicotinamide (100 mg, 0.32 mmol) and triethoxymethane (5 mL) was stirred at 130° C. for 15 h. The mixture was cooled to room temperature and extracted with ethyl acetate (10 mL*3), the combined organic layers were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated to afford 6-bromo-3-(2-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3H)-one (100 mg, 97% yield), which was used for the next step without further purification. MS (M+H)+:320/322.

Provenance & Evidence