Triphosgene → HCID 57410584, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-methyl-N1-[6-(1H-spiro[2-benzopyran-4,1′-cyclopropan]-5-yloxy)-3-pyridinyl]alaninamide (34 mg, 0.096 mmol) in dry Dichloromethane (DCM) (5 mL) TEA (0.067 mL, 0.481 mmol) was added and the reaction mixture was cooled to 0° C. A solution of triphosgene (12.85 mg, 0.043 mmol) in dry Dichloromethane (DCM) (2 mL) was slowly added and the reaction mixture was stirred for 30 minutes at the same temperature. The reaction was quenched with water (5 ml) and two phases were separated. The organic layer was dried (Na2SO4), filtered and evaporated and the residue was purified by flash chromatography (Biotage system) on silica gel using a column SNAP 10 g and Dichloromethane/methanol 99:1 to Dichloromethane/methanol 95:5 as eluents affording the title compound (35 mg) as a white solid.

Provenance & Evidence