Dimethyl Sulfoxide → HCID 71768545, compound

Participants

Reaction Steps

To a solution of N-(4-amino-3-hydroxy-4-oxo-1-phenylbutan-2-yl)-2-(3-((4-phenylpiperidin-1-yl)methyl)-1H-pyrazol-1-yl)nicotinamide (100 mg, 0.186 mmol) in dichloromethane (3 mL) at room temperature DMSO (300 μL), N,N′-dichyclohexyl-carbodiimide (380 mg, 1.842 mmol) and 2,2-dichloroacetic acid (40 μL, 0.487 mmol) were added, and the mixture stirred for 1.5 h at room temperature. After completion of the reaction the mixture was filtered, the filtrate diluted with 30 mL of water, extracted with ethylacetate, the aqueous layer then adjusted to pH 8 by adding NaHCO3, then extracted again with ethyl acetate (3×30 mL), the combined organic layers washed with brine, dried (MgSO4), filtered and concentrated to give 80 mg of a yellow amorphous solid. Purification by chromatography over silica gel (CH2Cl2/methanol) and concentration afforded 25 mg of the title compound as white amorphous solid; ESI-MS [M+H]+: 537.2.

Provenance & Evidence