反应详情

To a stirred solution of ethyl 2-[2,4-difluoro-3-[[5-(3-fluorophenyl)-2-methyl-phenyl]methylamino]phenoxy]acetate (100 mg, 0.23 mmol, 1.0 eq) in THF (8 mL) was added NaOH (1M aqueous solution, 3 mL, 3 mmol, 13.0 eq) at room temperature. The reaction was stirred at room temperature for 2 h. The THF was evaporated in vacuo and the aqueous layer acidified to pH 3 by addition of 1M HCl. The resultant precipitate was collected by filtration and dried in vacuo to give the title compound (I(c)) as a white solid (85 mg, 91%).

1. customThe THF was evaporated in vacuo
2. additionthe aqueous layer acidified to pH 3 by addition of 1M HCl
3. filtrationThe resultant precipitate was collected by filtration
4. customdried in vacuo