benzyl N-[(2R)-1-amino-1-oxo-3-phenylpropan-2-yl]carbamate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of (R)-benzyl 1-amino-1-oxo-3-phenylpropan-2-ylcarbamate (910 mg, 3.05 mmol) and Pd—C (10%, 200 mg) in MeOH (20 mL) was hydrogenated under balloon H2 for 16 h. It was filtered through celite. The filtrate was concentrated in vacuo to give D-phenylalanine amide as a white solid (493 mg). It was filtered through celite The filtrate was concentrated in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of N-Cbz-D-phenylalanine (1.00 g, 3.34 mmol) and HOBt hydrate (0.614 g, 4.01 mmol) in DMF (9 mL), EDC (0.834 g, 4.34 mmol) was added. The mixture was stirred for 40 min. Then conc. NH4OH (1.00 mL, ˜14 mmol) was added. It was stirred for 72 h. Water and EtOAc were added. The organic phase was separated, washed with 5% NaHCO3, dried over Na2SO4, concentrated in vacuo to give (R)-benzyl 1-amino-1-oxo-3-phenylpropan-2-ylcarbamate as a solid (0.910 g). It was stirred for 72 h The organic phase was separated washed with 5% NaHCO3 dried over Na2SO4 concentrated in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of (R)-benzyl 1-amino-1-oxo-3-phenylpropan-2-ylcarbamate (910 mg, 3.05 mmol) and Pd—C (10%, 200 mg) in MeOH (20 mL) was hydrogenated under balloon H2 for 16 h. It was filtered through celite. The filtrate was concentrated in vacuo to give D-phenylalanine amide as a white solid (493 mg). It was filtered through celite The filtrate was concentrated in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of N-Cbz-D-phenylalanine (1.00 g, 3.34 mmol) and HOBt hydrate (0.614 g, 4.01 mmol) in DMF (9 mL), EDC (0.834 g, 4.34 mmol) was added. The mixture was stirred for 40 min. Then conc. NH4OH (1.00 mL, ˜14 mmol) was added. It was stirred for 72 h. Water and EtOAc were added. The organic phase was separated, washed with 5% NaHCO3, dried over Na2SO4, concentrated in vacuo to give (R)-benzyl 1-amino-1-oxo-3-phenylpropan-2-ylcarbamate as a solid (0.910 g). It was stirred for 72 h The organic phase was separated washed with 5% NaHCO3 dried over Na2SO4 concentrated in vacuo