Propionyl chloride → HCID 66745328, compound

Participants

Reaction Steps

To a solution of 3-[5-[4-(bromomethyl)phenyl]-1,3,4-oxadiazol-2-yl]-5-(1,2,3,6-tetrahydropyridin-4-yl)pyrazin-2-amine (34 mg, 0.07 mmol) in anhydrous DCM (500 μL) cooled in an ice water bath under an atmosphere of nitrogen was added DIEA (49 mg, 66 μL, 0.38 mmol) followed by the dropwise addition of a solution of propanoyl chloride (8 mg, 7 μL, 0.08 mmol) in DCM (0.2 mL). The reaction mixture was stirred for 15 minutes. The reaction mixture was diluted with DCM and washed three times with 1M aqueous HCl solution, twice with saturated aqueous NaHCO3 solution and then twice with a solution of brine. The layers were separated and the organic layer was dried over Na2SO4, filtered and concentrated to dryness under reduced pressure to yield 1-[4-[5-amino-6-[5-[4-(bromomethyl)phenyl]-1,3,4-oxadiazol-2-yl]pyrazin-2-yl]-3,6-dihydro-2H-pyridin-1-yl]propan-1-one (20 mg, 57%). LC/MS m/z 471.3 [M+H]+.

Provenance & Evidence