1,2-Dichloroethane → HCID 86624506, compound

Participants

Reaction Steps

Under argon, 1 g (2.54 mmol) of (3S)-7-{[(benzyloxy)carbonyl]amino}-3-[(tert-butoxycarbonyl)amino]heptanoic acid, 406 mg (2.54 mmol) of tert-butyl (2-aminoethyl)carbamate and 0.96 ml of triethylamine (6.85 mmol) are dissolved in 20 ml of dimethylformamide. Then, at 0° C. (ice bath), 826 mg (4.3 mmol) of EDC and 113 mg (0.84 mmol) of HOBt are added. The mixture is slowly warmed to RT and stirred at RT for 12 h. The solution is concentrated in vacuo and the residue is taken up with ethyl acetate. The organic phase is washed successively with saturated sodium bicarbonate and sodium chloride solutions, dried over magnesium sulfate and evaporated in vacuo. The remaining solid is dried under high vacuum.

Provenance & Evidence