反应详情

温度

70 °C

(2S,4R)-N-(4-Chloro-phenyl)-N-[1-(4-hydroxy-benzoyl)-2-methyl-1,2,3,4-tetrahydro-quinolin-4-yl]-acetamide (75 mg, 0.17 mmol) was dissolved in DMF (1 mL) at room temperature. K2CO3 (47 mg, 0.34 mmol) was added followed by 1-(3-bromopropyl)-pyrazole (64 mg, 0.34 mmol) (prepared from the reaction of 1,3-dibromopropane and pyrazole with sodium hydride in tetrahydrofuran). The reaction was allowed to stir at 70° C. for 3 hrs. The reaction mixture was concentrated in vacuo. The residue was partitioned between ethyl acetate and water, then extracted three times with ethyl acetate. Organic layers were washed with brine, dried over MgSO4, filtered and concentrated down. The crude residue was purified by silica gel chromatography (1/99 methanol/dichloromethane-3/97 methanol/dichloromethane gradient) to afford the product.

1. concentrationThe reaction mixture was concentrated in vacuo
2. customThe residue was partitioned between ethyl acetate and water
3. extractionextracted three times with ethyl acetate
4. washOrganic layers were washed with brine
5. dry with materialdried over MgSO4
6. filtrationfiltered
7. concentrationconcentrated down
8. customThe crude residue was purified by silica gel chromatography (1/99 methanol/dichloromethane-3/97 methanol/dichloromethane gradient)
9. customto afford the product