Potassium Carbonate → Methyl 3-(2-(3,5-bis(trifluoromethyl)phenylamino)-2-oxoethyl)-5-methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate

Participants

Reaction Steps

To a suspension of methyl 5-methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate (1.62 g, 7.2 mmol) in CH3CN (35 mL) was added K2CO3 (1.0 g, 7.24 mmol), KI (1.2 g, 7.23 mmol), and N-(3,5-bis(trifluoromethyl)phenyl)-2-chloroacetamide 1 (2.2 g, 7.19 mmol). The reaction mixture was refluxed overnight and quenched with H2O (100 mL). The resultant precipitate was filtered and dried to afford 3.33 g of methyl 3-(2-(3,5-bis(trifluoromethyl)phenylamino)-2-oxoethyl)-5-methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate, as a solid (yield: 90%).

Provenance & Evidence