tert-butyl N-cyclopropyl-N-(piperidin-4-ylmethyl)carbamate

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Oxalyl chloride (1.26 ml, 14.4 mmol) was added to a solution of 4-(2-carboxy-ethyl)-3-methyl-benzoic acid methyl ester from Example E30.3 (1.60 g, 7.2 mmol) in dichloromethane (50 ml) and few drops of DMF. The mixture was stirred for 1 h at room temperature, concentrated in vacuo and azeotroped with toluene. The residue was dissolved in dichloromethane (50 ml) and DIEA (2.5 ml, 14.4 mmol) and cyclopropyl-piperidin-4-ylmethyl-carbamic acid tert-butyl ester from Example E38 (1.83 g, 7.2 mmol) in dichloromethane (5 ml) was added. The mixture was stirred for 2 h at room temperature, diluted with dichloromethane, washed with saturated NaHCO3 then brine, dried and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; 50% EtOAc:50% cyclohexane) to yield the title compound (1.42 g, 43%). concentrated in vacuo azeotroped with toluene The residue was dissolved in dichloromethane (50 ml) The mixture was stirred for 2 h at room temperature washed with saturated NaHCO3 brine, dried concentrated in vacuo The residue was purified by flash chromatography on silica gel (eluant; 50% EtOAc:50% cyclohexane)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-[(tert-Butoxycarbonyl-cyclopropyl-amino)-methyl]-piperidine-1-carboxylic acid benzyl ester from Example E38.2 (3.67 g, 9.4 mmol) was dissolved in methanol (100 ml) and hydrogenated over 10% Pd/C catalyst (3 g) for 1 h. The mixture was filtered through Celite® filter agent and the filtrate was concentrated in vacuo to yield the title compound (2.07 g, 87%). The mixture was filtered through Celite® filter agent the filtrate was concentrated in vacuo

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Oxalyl chloride (1.26 ml, 14.4 mmol) was added to a solution of 4-(2-carboxy-ethyl)-3-methyl-benzoic acid methyl ester from Example E30.3 (1.60 g, 7.2 mmol) in dichloromethane (50 ml) and few drops of DMF. The mixture was stirred for 1 h at room temperature, concentrated in vacuo and azeotroped with toluene. The residue was dissolved in dichloromethane (50 ml) and DIEA (2.5 ml, 14.4 mmol) and cyclopropyl-piperidin-4-ylmethyl-carbamic acid tert-butyl ester from Example E38 (1.83 g, 7.2 mmol) in dichloromethane (5 ml) was added. The mixture was stirred for 2 h at room temperature, diluted with dichloromethane, washed with saturated NaHCO3 then brine, dried and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; 50% EtOAc:50% cyclohexane) to yield the title compound (1.42 g, 43%). concentrated in vacuo azeotroped with toluene The residue was dissolved in dichloromethane (50 ml) The mixture was stirred for 2 h at room temperature washed with saturated NaHCO3 brine, dried concentrated in vacuo The residue was purified by flash chromatography on silica gel (eluant; 50% EtOAc:50% cyclohexane)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-[(tert-Butoxycarbonyl-cyclopropyl-amino)-methyl]-piperidine-1-carboxylic acid benzyl ester from Example E38.2 (3.67 g, 9.4 mmol) was dissolved in methanol (100 ml) and hydrogenated over 10% Pd/C catalyst (3 g) for 1 h. The mixture was filtered through Celite® filter agent and the filtrate was concentrated in vacuo to yield the title compound (2.07 g, 87%). The mixture was filtered through Celite® filter agent the filtrate was concentrated in vacuo

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Oxalyl chloride (1.26 ml, 14.4 mmol) was added to a solution of 4-(2-carboxy-ethyl)-3-methyl-benzoic acid methyl ester from Example E30.3 (1.60 g, 7.2 mmol) in dichloromethane (50 ml) and few drops of DMF. The mixture was stirred for 1 h at room temperature, concentrated in vacuo and azeotroped with toluene. The residue was dissolved in dichloromethane (50 ml) and DIEA (2.5 ml, 14.4 mmol) and cyclopropyl-piperidin-4-ylmethyl-carbamic acid tert-butyl ester from Example E38 (1.83 g, 7.2 mmol) in dichloromethane (5 ml) was added. The mixture was stirred for 2 h at room temperature, diluted with dichloromethane, washed with saturated NaHCO3 then brine, dried and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; 50% EtOAc:50% cyclohexane) to yield the title compound (1.42 g, 43%). concentrated in vacuo azeotroped with toluene The residue was dissolved in dichloromethane (50 ml) The mixture was stirred for 2 h at room temperature washed with saturated NaHCO3 brine, dried concentrated in vacuo The residue was purified by flash chromatography on silica gel (eluant; 50% EtOAc:50% cyclohexane)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-[(tert-Butoxycarbonyl-cyclopropyl-amino)-methyl]-piperidine-1-carboxylic acid benzyl ester from Example E38.2 (3.67 g, 9.4 mmol) was dissolved in methanol (100 ml) and hydrogenated over 10% Pd/C catalyst (3 g) for 1 h. The mixture was filtered through Celite® filter agent and the filtrate was concentrated in vacuo to yield the title compound (2.07 g, 87%). The mixture was filtered through Celite® filter agent the filtrate was concentrated in vacuo