Potassium Carbonate → 2-Amino-6-{[2-(4-fluorophenyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-4-[4-(2-hydroxyethoxy)-phenyl]pyridine-3,5-dicarbonitrile

Participants

Reaction Conditions

Reaction Steps

250 mg (0.81 mmol) of the compound from Example 102A, 228 mg (1.013 mmol) of 4-(chloromethyl)-2-(4-fluorophenyl)-5-methyl-1,3-oxazole and 224 mg (1.62 mmol) of potassium carbonate are initially charged in 8.6 ml of dry DMF and stirred at 70° C. for 2 h. The solvent is then removed on a rotary evaporator and the residue is purified by preparative HPLC (column: YMC GEL ODS-AQ S-5/15 μm; mobile phase gradient: acetonitrile/water 10:90→95:5). The product is then purified once more by HPLC (column: Waters Sunfire C 18 5 nm, 250 mm×20 mm; mobile phase gradient: water/ethanol 55:45→5:95; flow rate: 25 ml/min; temperature: 30° C.; detection: 210 nm).

Provenance & Evidence