Iodoethane → (S)-1-(2-benzyl-4-(1-cyclobutyl-3-ethyl-1H-indazol-6-yl)piperazin-1-yl)-2-(1-ethyl-1H-pyrazol-4-yl)ethanone

Participants

Reaction Conditions

Reaction Steps

A solution of (S)-1-(2-benzyl-4-(1-cyclobutyl-3-ethyl-1H-indazol-6-yl)piperazin-1-yl)-2-(1H-pyrazol-4-yl)ethanone (101 mg, 0.21 mmol) in DMF (1 mL) was treated with sodium hydride (10 mg, 0.25 mmol) as a 60% dispersion in mineral oil. Once bubbling subsided, ethyl iodide (18 μL, 0.23 mmol) was added and the mixture was heated to 60° C. for 24 h. The reaction mixture was diluted with EtOAc (30 mL) and washed with water (5 mL) followed by brine (5 mL). The organic layer was dried over Na2SO4, filtered, and evaporated. The crude residue was purified by silica gel chromatography eluting with a 0-10% MeOH in CH2Cl2 gradient to afford product as a colorless solid (48 mg, 44%). LC/MS 4.03 min, [M+1]+ 511.

Provenance & Evidence