Methyl 3-(((tert-butoxycarbonyl)aMino)Methyl)benzoate

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Methyl 3-{[(tert-butoxycarbonyl)amino]methyl}benzoate (4.6 g) was mixed with toluene (50 ml), followed by cooling to 0° C. Sodium bis(2-methoxyethoxy)aluminum hydride (65% toluene solution) (20 g) was added dropwise over 30 minutes, followed by stirring at 0° C. for 1 hour. A 1 M aqueous NaOH solution (30 ml) was added dropwise to the reaction mixture, and CHCl3 was then added thereto. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/EtOAc) to obtain tert-butyl [3-(hydroxymethyl)benzyl]carbamate (4.1 g). was then added The organic layer was dried over Na2SO4 concentrated under reduced pressure The obtained residue was purified by silica gel column chromatography (hexane/EtOAc)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Dissolve 3-(tert-butoxycarbonylamino-methyl)-benzoic acid methyl ester (2.80 g, 10.6 mmol) in dimethylformamide (60 mL). Add 60% sodium hydride dispersion in oil (0.52 g, 13 mmol). Stir for 1 hr. Add methyl iodide (0.81 mL, 13 mmol) and stir for additional 1 hr. Quench the reaction with water and concentrate. Partition the residue between ethyl acetate and water. Separate the organic layer and dry over sodium sulfate. Filter and concentrate. Purify the residue by chromatography (silica gel) eluting with 15-25% ethyl acetate/hexane to provide the title compound (1.70 g, 57%). Quench the reaction with water concentrate Partition the residue between ethyl acetate and water Separate the organic layer dry over sodium sulfate Filter concentrate Purify the residue by chromatography (silica gel) eluting with 15-25% ethyl acetate/hexane

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Methyl 3-{[(tert-butoxycarbonyl)amino]methyl}benzoate (4.6 g) was mixed with toluene (50 ml), followed by cooling to 0° C. Sodium bis(2-methoxyethoxy)aluminum hydride (65% toluene solution) (20 g) was added dropwise over 30 minutes, followed by stirring at 0° C. for 1 hour. A 1M aqueous NaOH solution (30 ml) was added dropwise to the reaction mixture, and CHCl3 was then added thereto. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/EtOAc) to obtain tert-butyl [3-(hydroxymethyl)benzyl]carbamate (4.1 g). was then added The organic layer was dried over Na2SO4 concentrated under reduced pressure The obtained residue was purified by silica gel column chromatography (hexane/EtOAc)

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Methyl 3-{[(tert-butoxycarbonyl)amino]methyl}benzoate (4.6 g) was mixed with toluene (50 ml), followed by cooling to 0° C. Sodium bis(2-methoxyethoxy)aluminum hydride (65% toluene solution) (20 g) was added dropwise over 30 minutes, followed by stirring at 0° C. for 1 hour. A 1 M aqueous NaOH solution (30 ml) was added dropwise to the reaction mixture, and CHCl3 was then added thereto. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/EtOAc) to obtain tert-butyl [3-(hydroxymethyl)benzyl]carbamate (4.1 g). was then added The organic layer was dried over Na2SO4 concentrated under reduced pressure The obtained residue was purified by silica gel column chromatography (hexane/EtOAc)