Sodium Iodide → Glycine [[bis(2-hydroxyethyl)amino]carbonyl]methyl ester

Participants

Reaction Steps

A mixture of 1.0 g (1.92 mmol) of N-(carboxymethyl)-N-[3,5-bis(decyloxy)phenyl]glycine, 2.6 ml of N,N-diisopropylethylamine and a solution of N,N-bis(2-hydroxyethyl)-2-chloroacetamide [prepared from the reaction of 2.1 g (20 mmol) of diethanolamine, 1.6 ml (20 mmol) of chloroacetyl chloride and 3.1 ml (22 mmol) of triethylamine in 25 ml of DMF] was stirred at room temperature for 17 hours. Sodium iodide (3.0 g, 20 mmol) was added and the reaction mixture was stired and heated at 60° under argon for 25 hours. The mixture was concentrated at reduced pressureand NaHCO3 solution was added to the residue. The product was extracted with ethyl acetate and the extract was washed with water, dried and concentrated to an oil which was crystallized from methylene chloride-ether to give 0.455 g (29% yield, mp 104°-107°) of N-[3,5-bis(decyloxy)phenyl]-N-[[bis(2-hydroxyethyl)amino]carbonyl]methoxy]-2-oxoethyl]glycine [[bis(2-hydroxyethyl)amino]carbonyl]methyl ester.

Provenance & Evidence