Phosgene → HCID 86715383, compound

Participants

Reaction Conditions

Reaction Steps

(2S)—N—((S)-1-((2S,4S)-2-hydroxy-1-iodo-2,6-dimethyl-3-oxoheptan-4-ylcarbamoyl)-2-phenylethyl)-2-((S)-2-(2-morpholinoacetamido)-4-phenylbutanamido)-4-methylpentanamide (1.18 g, 1.39 mmol) was dissolved in dichloromethane. DMAP (1.92 g, 13.9 mmol) was added and the mixture cooled to 0° C. Phosgene solution (20% in toluene, 3.75 mL, 5.52 mmol) was added dropwise and the reaction stirred at 0° C. for 30 minutes. Propargyl alcohol (0.802 ml, 13.9 mmol) was added and the mixture stirred at room temperature for 16 hours. The reaction was diluted with 200 mL dichloromethane, washed with 1 N HCl (50 ml) and brine (50 mL), dried over anhydrous MgSO4 and concentrated under reduced pressure. The residue was purified by prep HPLC to afford 230 mg of white solid. 1H NMR (DMSO-d6): δ 8.37 (d, J=8.5 Hz, 1H), 8.18 (s, 1H), 8.12 (d, J=8.0 Hz, 1H), 8.03 (d, J=8.5 Hz, 1H), 7.88 (d, J=8.5 Hz, 1H), 7.28-7.08 (m, 10H), 5.19 (s, 2H), 4.89-4.83 (m, 1H), 4.57-4.51 (m, 4H), 4.37-4.28 (m, 2H), 3.87-3.79 (m, 4H), 3.65-3.31 (m, 793H), 2.96-2.90 (m, 4H), 2.80-2.76 (m, 1H), 2.50-2.42 (m, 6H), 1.89-75 (m, 2H), 1.58-1.30 (m, 9H). 0.86-0.74 (m, 12H).

Provenance & Evidence