反应详情

A solution of N-Boc-β-(2-thienyl)-D-alanine (504 mg, 1.86 mmol), HOBt monohydrate (340 mg, 2.22 mmol) and EDC (460 mg, 2.39 mmol) in DMF (6 mL) was stirred at room temperature for 1 h, conc. NH4OH (0.600 mL, ca. 8.40 mmol) was added. The mixture was stirred for 18 h. Water and EtOAc were added. The organic phase was separated, washed with 5% NaHCO3, dried over Na2SO4, concentrated in vacuo to give (R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate (454 mg)

1. customThe organic phase was separated
2. washwashed with 5% NaHCO3
3. dry with materialdried over Na2SO4
4. concentrationconcentrated in vacuo