反应详情

(3-Fluoro-phenyl)-phenylamino-acetic acid methyl ester (I97) (229 mg, 0.88 mmol) and lithium hydroxide hydrate (74.1 mg, 1.77 mmol) are dissolved in THF/water (6 mL/2 mL) and stirred at RT for 2 hours. THF is evaporated, the resulting basic aqueous solution is acidified till pH 1 with 1M HCl. The precipitate is recovered by suction filtration and washed with 1M HCl. The compound is dried at 40° C. under vacuum overnight to get intermediate I146 as a white solid (186 mg, 75% yield).

1. customTHF is evaporated
2. filtrationThe precipitate is recovered by suction filtration
3. washwashed with 1M HCl
4. customThe compound is dried at 40° C. under vacuum overnight