Glycine ethyl ester, hydrochloride → Ethyl [(2-{(tert-butoxycarbonyl) [2-(4-nitrophenyl)ethyl]amino}ethyl)amino]acetate

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-Butyl [2-(4-nitrophenyl)ethyl](2-oxoethyl)carbamate (0.52 g, 1.7 mmol) in MeOH (10 mL) was added ethyl aminoacetate hydrochloride (0.31 g, 2.2 mmol), sodium cyanoborohydride (1.1 g, 5.1 mmol), and a few drops of acetic acid. The mixture was allowed to stir at 25° C. for 16 hours. LC showed clean reaction. The product was purified by silica gel chromatography (Hexane:EtOAc) to deliver Ethyl [(2-{(tert-butoxycarbonyl) [2-(4-nitrophenyl)ethyl]amino}ethyl)amino]acetate. LC-MS (IE, m/z): 396 [M+1]+.

Provenance & Evidence