反应 #3758507
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08093389B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: tert-butyl 6-carboxy-4-oxospiro[chroman-2,4′-piperidine]-1′-carboxylate (7.50 g, 20.8 mmol), glycinamide hydrochloride (2.76 g, 24.9 mmol), EDCI (4.78 g, 24.9 mmol), HOBT (3.78 g, 24.9 mmol), and TEA (5.80 ml, 41.6 mmol) were suspended in DMF (75 ml) and stirred at room temperature for 23 h. After removal of the solvent, the residue was diluted with EtOAc and H2O. The aqueous layer was extracted with EtOAc and the combined organic layer was washed with saturated NaHCO3 aq. and brine, dried over MgSO4. The desiccant was removed through filtration and the filtrate was concentrated under reduced pressure. The residue was triturated with MeOH-Et2O and the insoluble solid was collected through filtration to obtain the intended compound as a colorless solid. After removal of the solvent the residue was diluted with EtOAc and H2O The aqueous layer was extracted with EtOAc the combined organic layer was washed with saturated NaHCO3 aq. and brine dried over MgSO4 The desiccant was removed through filtration the filtrate was concentrated under reduced pressure The residue was triturated with MeOH-Et2O the insoluble solid was collected through filtration
来源 ID: ord-8c48fd5b9bbb42c2b80b44be47734134