1-Methyl-4-piperidone → HCID 66754888, compound

Participants

Reaction Steps

To a solution of 3-[2-((S)-3-amino-pyrrolidin-1-yl)-2-oxo-1-phenyl-ethyl]-1-(4-methoxy-benzenesulfonyl)-2-oxo-2,3-dihydro-1H-benzoimidazole-5-carbonitrile (Example 171, 200 mg, 0.38 mmol) and 1-methyl-4-piperidone (0.087 mL, 0.75 mmol) in THF (5 mL) MP-(OAc)3BH resin (Argonaut; 2.55 mmol/g; 369 mg, 0.94 mmol) was added. The reaction mixture was agitated at room temperature for 24 hours, then filtered and concentrated in vacuo. The residue was purified by flash chromatography on silica gel using 15% methanol in CH2Cl2 to afford 1-(4-methoxy-benzenesulfonyl)-3-{2-[(S)-3-(1-methyl-piperidin-4-ylamino)-pyrrolidin-1-yl]-2-oxo-1-phenyl-ethyl}-2-oxo-2,3-dihydro-1H-benzoimidazole-5-carbonitrile (167 mg, 71%) as a white solid.

Provenance & Evidence