Potassium Carbonate → 7-Benzyloxy-4-(2,3-dimethylindol-5-yloxy)-6-methoxyquinazoline

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A mixture of 7-benzyloxy-4-chloro-6-methoxyquinazoline (1.5 g, 4.99 mmol), (prepared as described for the starting material in Example 1), potassium carbonate (2.07 g, 15 mmol) and 2,3-dimethyl-5-hydroxyindole (1.21 g, 7.5 mmol), (Arch. Pharm. 1972, 305, 159), in DMF (75 ml) was stirred at 100° C. for 2 hours and allowed to cool to ambient temperature. The reaction mixture was filtered and the filtrate evaporated. The solid residue was purified by silica column chromatography, eluting with 2.5% methanol in dichoromethane to give 7-benzyloxy-4-(2,3-dimethylindol-5-yloxy)-6-methoxyquinazoline (976 mg, 46%).

Herkunft & Nachweise