反应详情

The method described in Part A of Example 10 was used to treat ethyl 5-(3-aminoquinolin-4-ylamino)pentanoate (26.3 g, 91.5 mmol) with trimethyl orthobutyrate (18.3 mL, 114 mmol) and pyridinium p-toluenesulfonate (0.5 g). The reaction was complete in three hours to provide 28 g of ethyl 5-(2-propyl-1H-imidazo[4,5-c]quinolin-1-yl)pentanoate as a brown oil.