反应详情

To a solution of methyl 4-((5-chloro-6-isobutoxypyridin-3-yloxy)methyl)-2,5-difluorobenzoate (Preparation 4, 623 mg, 1.6 mmol) in THF (10 mL) was added lithium hydroxide (1.8 mL of a 1 M solution in water) and the mixture stirred at room temperature under nitrogen for 18 hours. The solvent was evaporated in vacuo to give the title compound (352 mg, 59%) as a pale yellow solid and was used directly in the next step.

1. customThe solvent was evaporated in vacuo