Triethylamine → HCID 53241717, compound

Participants

Reaction Conditions

Reaction Steps

In a 50 mL round-bottomed flask N1-{6-[(2,6-dimethylphenyl)oxy]-3-pyridinyl}-D-alaninamide (Intermediate 44, 173.8 mg) was dissolved in dichloromethane (5 mL) to give a yellow solution. The reaction mixture was cooled at 0° C. N,N-dimethyl-4-pyridinamine (36.5 mg, 0.298 mmol), triethylamine (0.208 mL, 1.492 mmol) and triphosgene (89 mg, 0.298 mmol) were added. The reaction mixture was stirred at 0° C. After 20 min the solvent was evaporated under vacuum to afford a yellow solid. This residue was purified by silica gel chromatography (Biotage instrument, 10 g SNAP Silica column) eluting with Cyclohexane/EtOAc from 2:1 Cyclohexane/EtOAc to 1:3 Cyclohexane/EtOAc in 20 CV; then 1:3 Cyclohexane/EtOAc for 5 CV. The collected fractions afforded the title compound as a colourless oil (162 mg).

Provenance & Evidence