反应详情

温度

60 °C

N-(3-ethoxypropyl)-3-(4-hydroxyphenyl)-N-(4-isopropylbenzyl)propanamide (0.18 g, 0.47 mmol) and methyl 2-(bromomethyl)benzoate (0.12 g, 0.52 mmol) was dissolved in acetonitrile (10 ml) and potassium carbonate (131 mg, 0.95 mmol) was added. The mixture was stirred at 60° C. for three hours. Polymer-supported trisamine (0.3 eqv) was added and stirred overnight. The polymer was filtered off, solvent was removed by evaporation, addition of EtOAc (10 ml) and the organic phase was washed with three portions of water. After drying the crude (MgSO4) and the solvent had been removed by evaporation, the crude was purified by preparative HPLC (started with acetonitrile/buffer 60/40 and then the acetonitrile concentration was increased to 100%, the buffer was a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min). The product containing fractions were pooled and the acetonitrile was removed by evaporation. EtOAc (10 ml) was added and the organic phase was washed with two potions of brine and dried (MgSO4). Removing the solvent by evaporation gave 0.16 gram of methyl 2-[(4-{3-[(3-ethoxypropyl)(4-isopropylbenzyl)amino]-3-oxopropyl}phenoxy)methyl]benzoate (yield 63.5%).

1. stirringstirred overnight
2. filtrationThe polymer was filtered off
3. customsolvent was removed by evaporation, addition of EtOAc (10 ml)
4. washthe organic phase was washed with three portions of water
5. dry with materialAfter drying the crude (MgSO4)
6. customthe solvent had been removed by evaporation
7. customthe crude was purified by preparative HPLC (
8. concentrationthe acetonitrile concentration
9. temperaturewas increased to 100%
10. additiona mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min)
11. additionThe product containing fractions
12. customthe acetonitrile was removed by evaporation
13. additionEtOAc (10 ml) was added
14. washthe organic phase was washed with two potions of brine
15. dry with materialdried (MgSO4)
16. customRemoving the solvent
17. customby evaporation