反应详情

3-Fluoro-4-{3-[(1S)-2-methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}benzoic acid (40.0 mg, 0.163 mmol) synthesized in Example (44a) was dissolved in tetrahydrofuran (5 mL), and dimethylamine hydrochloride (20.1 mg, 0.246 mmol), HATU (64.5 mg, 0.170 mmol) and N,N-diisopropylethylamine (89 μL, 0.51 mmol) were added, followed by stirring at room temperature for 4 hours under nitrogen atmosphere. To the reaction solution, saturated brine (15 mL) was added, and extraction was carried out twice with ethyl acetate (15 mL), followed by drying over sodium sulfate. The solvent was distilled off under reduced pressure, and the resulting residue was purified using silica gel column chromatography (elution solvent: ethyl acetate/hexane=0%-75%) to afford the desired compound (45 mg, yield 99%) as a pale yellow solid.

1. extractionextraction
2. dry with materialby drying over sodium sulfate
3. distillationThe solvent was distilled off under reduced pressure
4. customthe resulting residue was purified
5. washsilica gel column chromatography (elution solvent: ethyl acetate/hexane=0%-75%)