Potassium Carbonate → HCID 22625062, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (350 mg, 1.0 mmol), (prepared as described for the starting material in Example 24), 4-(2-chloroethylthio)pyridine hydrochloride (252 mg, 1.2 mmol) and potassium carbonate (454 mg, 3.3 mmol) in NMP (30 ml) was heated at 90° C. for 2 hours. The mixture was allowed to cool, diluted with water and extracted with ethyl acetate. The combined extracts were washed with water, dried (MgSO4) and the solvent removed by evaporation. The residue was purified by column chromatography eluting with ethyl acetate/methanol mixtures (100/0 increasing to 75/25) to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-(4-pyridylthio)ethoxy)quinazoline (13 mg, 3%). m.p. 182-186° C. 1H NMR Spectrum: (DMSOd6) 3.58(t, 2H); 3.90(s, 3H); 4.40(t, 2H); 7.20(s, 1H); 7.32(d, 1H); 7.40(d, 2H); 7.50-7.60(m, 2H); 7.80(s, 1H); 8.32(s, 1H); 8.38(d, 2H); 9.57(s, 1H) MS-ESI: 457 [MH]+

Provenance & Evidence