反应详情

To a solution of methyl 2-(4-(4-((4-chlorophenethyl) carbamoyl)phenoxy)-3-methoxyphenyl)acetate (0.065 g, 0.143 mmol) in methanol/THF (1:1, 3 ml) was added NaOH (0.100 ml, 0.500 mmol). After 5 minutes, reaction was quenched with 10 ml of 2N HCl and the product was extracted into ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated. The crude material was purified by silica gel chromatography, eluting with a gradient of 0.5% methanol/dichloromethane (containing 0.5% AcOH) to 7.5% methanol/dichloromethane containing (0.5% AcOH) to provide 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-methoxyphenyl)acetic acid (0.041 g, 65.1% yield) as a white solid. 1H NMR (400 MHz, CD3OD) δ 8.37-8.41 (bt, NH), 7.70 (d, J=8.7 Hz, 2H), 7.28 (d, J=8.6 Hz, 2H), 7.23 (d, J=8.5 Hz, 2H), 7.08 (s, 1H), 7.02 (d, J=8.6 Hz, 1H), 6.91 (d, J=8.6 Hz, 2H), 3.64 (s, 2H), 3.56 (t, J=6.8 Hz, 2H), 2.88 (t, J=7.4 Hz, 2H).

1. customreaction
2. customwas quenched with 10 ml of 2N HCl
3. extractionthe product was extracted into ethyl acetate
4. washThe organic layer was washed with brine
5. dry with materialdried over magnesium sulfate
6. concentrationconcentrated
7. customThe crude material was purified by silica gel chromatography
8. washeluting with a gradient of 0.5% methanol/dichloromethane (containing 0.5% AcOH) to 7.5% methanol/dichloromethane containing (0.5% AcOH)