Potassium Carbonate → Ethyl 4-(4-cyanophenyl)-2-[(1H-imidazol-2-ylmethyl)sulfanyl]-6-methyl-1-[3-(trifluoromethyl)phenyl]-1,4-dihydro-5-pyrimidinecarboxylate

Participants

Reaction Steps

Ethyl 4-(4-cyanophenyl)-6-methyl-2-thioxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate (Example 3; 100 mg, 0.22 mmol), 2-(bromo-methyl)-1H-imidazole hydrobromide (64.5 mg, 0.25 mmol), N,N,N-tributyl-1-butan-aminium iodide (7 mg, 0.03 mmol) and potassium carbonate (65.2 mg, 0.47 mmol) are dissolved in 3 ml acetone and stirred at room temperature overnight. The solvent is removed by distillation in vacuo and the product is purified via preparative HPLC (RP18-column; eluent: acetonitrile-water, gradient 10:90 to 90:10).

Provenance & Evidence