反应详情

1-(4-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}phenyl)ethanone (30 mg, 0.067 mmol) synthesized in Example (39b) was dissolved in a mixed solvent of tetrahydrofuran (3.0 mL) and methanol (1.0 mL), and sodium borohydride (10 mg, 0.264 mmol) was added, followed by stirring at room temperature for 3 hours under nitrogen atmosphere. To this reaction solution, a saturated aqueous ammonium chloride solution (10 mL) was added, and extraction was carried out with ethyl acetate (10 mL). The organic layer was washed with saturated brine, and subsequently dried over anhydrous magnesium 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=40%-60%) to afford the desired compound (27.5 mg, yield 91%) as a white solid.

1. additionwas added
2. extractionextraction
3. washThe organic layer was washed with saturated brine
4. dry with materialsubsequently dried over anhydrous magnesium sulfate
5. distillationThe solvent was distilled off under reduced pressure
6. customthe resulting residue was purified
7. washsilica gel column chromatography (elution solvent: ethyl acetate/hexane=40%-60%)