Potassium Carbonate → 7-{[1-(tert-butoxycarbonyl)piperidin-4-yl]methoxy}-6-methoxy-4-[(3-methyl-1H-indol-5-yl)oxy]quinazoline

Participants

Reaction Conditions

Reaction Steps

A mixture of 7-hydroxy-6-methoxy-4-(3-methylindol-5-yloxy)quinazoline (1.00 g, 3.11 mmol), (prepared as described for the starting material in Example 271), potassium carbonate (1.288 g, 9.33 mmol) and 4-(4-methylphenylsulphonyloxymethyl)-1-tert-butoxycarbonylpiperidine (1.264 g, 3.42 mmol), (prepared as described for the starting material in Example 10), in DMF (35 ml) was stirred at 80° C. for 2 hours and allowed to cool to ambient temperature. The reaction mixture was filtered and the solvent removed in vacuo. The residue was purified by silica column chromatography, 5% methanol/95% dichloromethane and the product was recrystallised from ethanol to give 6-methoxy-4-(3-methylindol-5-yloxy)-7-(1-tert-butoxycarbonylpiperidin-4-ylmethoxy)quinazoline (1.011 g, 63%).

Provenance & Evidence