反应详情

温度

40 °C

LiHMDS (3.6 eq) was added to ethyl [5-(4-methylpiperazin-1-yl)-1H-benzimidazol-2-yl]acetate (1.0 eq) and 3-aminopyridine-2-carbonitrile (1.0 eq) in THF at 0° C. The reaction was stirred overnight and then heated at 40° C. for 3 hours. The resulting mixture was quenched with an aqueous saturated NH4Cl solution and extracted with EtOAc. The combined organic layers were washed with H2O and brine, dried over Na2SO4, filtered, and concentrated in vacuo to yield a green solid. The crude material was washed successively with CH2Cl2 and MeOH, and then was purified by reverse phase HPLC to provide the desired product. LC/MS m/z 376.1 (MH+), Rt 1.50 minutes.

1. customThe resulting mixture was quenched with an aqueous saturated NH4Cl solution
2. extractionextracted with EtOAc
3. washThe combined organic layers were washed with H2O and brine
4. dry with materialdried over Na2SO4
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customto yield a green solid
8. washThe crude material was washed successively with CH2Cl2 and MeOH
9. customwas purified by reverse phase HPLC