Cyanoacetic acid → N-(1-(2-(4-(4-acetylpiperazin-1-yl)phenylamino)-5-fluoropyrimidin-4-yl)piperidin-4-yl)-2-cyanoacetamide

To a suspension of cyanoacetic acid (85 mg, 1.00 mmol) in CH2Cl2 (2 mL) (containing 2 drops of DMF) at room temperature, oxalyl chloride (0.082 mL, 0.94 mmol) was added. Gas evolved and suspension became clear. It was then stirred for 30 min. To the above solution cooled in an ice bath, a solution of 1-(4-(4-(4-(4-aminopiperidin-1-yl)-5-fluoropyrimidin-2-ylamino)phenyl)piperazin-1-yl)ethanone (70 mg, 0.17 mmol) and TEA (0.478 mL, 3.43 mmol) in DMF (2 mL) was added drop wise. The mixture was then stirred at room temperature for 3 h. It was concentrated in vacuo. The residue was purified by HPLC to give the titled compound (12 mg). MS 481.5 (M+H); UV 204.7, 266.3 nm

1. temperatureTo the above solution cooled in an ice bath
2. stirringThe mixture was then stirred at room temperature for 3 h
3. concentrationIt was concentrated in vacuo
4. customThe residue was purified by HPLC

ORD record

ord-dd389f48ec054b679541d7e040a71953

Source dataset

uspto-grants-2012_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08258144B2