Cesium carbonate → tert-butyl 2-{[2-methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c]quinolin-7-yl]oxy}ethylcarbamate

Participants

Reaction Conditions

Reaction Steps

tert-Butyl 2-iodoethylcarbamate (2.55 g, 9.41 mmol), prepared as described in Parts J and K of Example 2, was added to a mixture of 2-methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c]quinolin-7-ol (2.00 g, 7.83 mmol) and cesium carbonate (3.83 g, 11.7 mmol) in DMF (30 mL), and the reaction was heated at 60° C. for four hours. The solvent was removed under reduced pressure, and the resulting solid was triturated with water and isolated by filtration to yield 2.57 g of tert-butyl 2-{[2-methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c]quinolin-7-yl]oxy}ethylcarbamate as a light-brown solid.

Provenance & Evidence