反应详情

To a solution of methyl 5-{2-[(tert-butoxycarbonyl)amino]ethoxy}-3-methyl-2-(propan-2-yloxy)pyridine-4-carboxylate (131d, 0.74 g, 2.0 mmol) in dry CH2Cl2 (20 mL) was added TFA (5 mL) at 5° C. The mixture was stirred at room temperature for 14 hours. The reaction mixture was concentrated under vacuum to give methyl 5-(2-aminoethoxy)-3-methyl-2-(propan-2-yloxy)pyridine-4-carboxylate (131e, 1.4 g) as brown oil.

1. concentrationThe reaction mixture was concentrated under vacuum