methyl 2-pyrrolidin-3-ylacetate

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: 3-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propanol (2.0 g, 0.0079 mol, prepared as described in example 10) was dissolved in dry THF (25 ml) under an atmosphere of nitrogen, and triethylamine (2.75 ml) was added. Methanesulfonyl chloride (0.61 ml, 0.0079 mol) was added dropwise and when addition was complete the reaction mixture was stirred for 45 minutes. The mixture was filtered and 3-pyrrolidinacetic acid methyl ester (2.4 g, 0.012 mol) was added to the filtrate. The mixture was heated at reflux temperature for 4 h and then stirred at room temperature for 48 h. Triethylamine (2.2 ml) was added and the mixture was heated at reflux temperature for 24 h. After cooling to room temperature the solvent was removed by evaporation in vacuo. The residue was purified by column chromatography on silica gel (125 g) using a mixture of dichloromethane and methanol (9:1) as eluent, affording 0.9 g (27%) of 1-(3-(10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propyl)-3-pyrrolidinacetic acid methyl ester as an oil. Rf : 0.15 (SiO2 ; dichloromethane/methanol/acetic acid=20:2:1). when addition The mixture was filtered The mixture was heated at reflux temperature for 4 h stirred at room temperature for 48 h the mixture was heated at reflux temperature for 24 h was removed by evaporation in vacuo The residue was purified by column chromatography on silica gel (125 g) a mixture of dichloromethane and methanol (9:1) as eluent

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

Procedure: 3-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propanol (2.0 g, 0.0079 mol, prepared as described in example 10) was dissolved in dry THF (25 ml) under an atmosphere of nitrogen, and triethylamine (2.75 ml) was added. Methanesulfonyl chloride (0.61 ml, 0.0079 mol) was added dropwise and when addition was complete the reaction mixture was stirred for 45 minutes. The mixture was filtered and 3-pyrrolidinacetic acid methyl ester (2.4 g, 0.012 mol) was added to the filtrate. The mixture was heated at reflux temperature for 4 h and then stirred at room temperature for 48 h. Triethylamine (2.2 ml) was added and the mixture was heated at reflux temperature for 24 h. After cooling to room temperature the solvent was removed by evaporation in vacuo. The residue was purified by column chromatography on silica gel (125 g) using a mixture of dichloromethane and methanol (9:1) as eluent, affording 0.9 g (27%) of 1-(3-(10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propyl)-3-pyrrolidinacetic acid methyl ester as an oil. Rf : 0.15 (SiO2 ; dichloromethane/methanol/acetic acid=20:2:1). when addition The mixture was filtered The mixture was heated at reflux temperature for 4 h stirred at room temperature for 48 h the mixture was heated at reflux temperature for 24 h was removed by evaporation in vacuo The residue was purified by column chromatography on silica gel (125 g) a mixture of dichloromethane and methanol (9:1) as eluent

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

Procedure: 3-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propanol (2.0 g, 0.0079 mol, prepared as described in example 10) was dissolved in dry THF (25 ml) under an atmosphere of nitrogen, and triethylamine (2.75 ml) was added. Methanesulfonyl chloride (0.61 ml, 0.0079 mol) was added dropwise and when addition was complete the reaction mixture was stirred for 45 minutes. The mixture was filtered and 3-pyrrolidinacetic acid methyl ester (2.4 g, 0.012 mol) was added to the filtrate. The mixture was heated at reflux temperature for 4 h and then stirred at room temperature for 48 h. Triethylamine (2.2 ml) was added and the mixture was heated at reflux temperature for 24 h. After cooling to room temperature the solvent was removed by evaporation in vacuo. The residue was purified by column chromatography on silica gel (125 g) using a mixture of dichloromethane and methanol (9:1) as eluent, affording 0.9 g (27%) of 1-(3-(10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propyl)-3-pyrrolidinacetic acid methyl ester as an oil. Rf : 0.15 (SiO2 ; dichloromethane/methanol/acetic acid=20:2:1). when addition The mixture was filtered The mixture was heated at reflux temperature for 4 h stirred at room temperature for 48 h the mixture was heated at reflux temperature for 24 h was removed by evaporation in vacuo The residue was purified by column chromatography on silica gel (125 g) a mixture of dichloromethane and methanol (9:1) as eluent

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

Procedure: 3-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propanol (2.0 g, 0.0079 mol, prepared as described in example 10) was dissolved in dry THF (25 ml) under an atmosphere of nitrogen, and triethylamine (2.75 ml) was added. Methanesulfonyl chloride (0.61 ml, 0.0079 mol) was added dropwise and when addition was complete the reaction mixture was stirred for 45 minutes. The mixture was filtered and 3-pyrrolidinacetic acid methyl ester (2.4 g, 0.012 mol) was added to the filtrate. The mixture was heated at reflux temperature for 4 h and then stirred at room temperature for 48 h. Triethylamine (2.2 ml) was added and the mixture was heated at reflux temperature for 24 h. After cooling to room temperature the solvent was removed by evaporation in vacuo. The residue was purified by column chromatography on silica gel (125 g) using a mixture of dichloromethane and methanol (9:1) as eluent, affording 0.9 g (27%) of 1-(3-(10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propyl)-3-pyrrolidinacetic acid methyl ester as an oil. Rf : 0.15 (SiO2 ; dichloromethane/methanol/acetic acid=20:2:1). when addition The mixture was filtered The mixture was heated at reflux temperature for 4 h stirred at room temperature for 48 h the mixture was heated at reflux temperature for 24 h was removed by evaporation in vacuo The residue was purified by column chromatography on silica gel (125 g) a mixture of dichloromethane and methanol (9:1) as eluent

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

Procedure: 3-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propanol (2.0 g, 0.0079 mol, prepared as described in example 10) was dissolved in dry THF (25 ml) under an atmosphere of nitrogen, and triethylamine (2.75 ml) was added. Methanesulfonyl chloride (0.61 ml, 0.0079 mol) was added dropwise and when addition was complete the reaction mixture was stirred for 45 minutes. The mixture was filtered and 3-pyrrolidinacetic acid methyl ester (2.4 g, 0.012 mol) was added to the filtrate. The mixture was heated at reflux temperature for 4 h and then stirred at room temperature for 48 h. Triethylamine (2.2 ml) was added and the mixture was heated at reflux temperature for 24 h. After cooling to room temperature the solvent was removed by evaporation in vacuo. The residue was purified by column chromatography on silica gel (125 g) using a mixture of dichloromethane and methanol (9:1) as eluent, affording 0.9 g (27%) of 1-(3-(10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propyl)-3-pyrrolidinacetic acid methyl ester as an oil. Rf : 0.15 (SiO2 ; dichloromethane/methanol/acetic acid=20:2:1). when addition The mixture was filtered The mixture was heated at reflux temperature for 4 h stirred at room temperature for 48 h the mixture was heated at reflux temperature for 24 h was removed by evaporation in vacuo The residue was purified by column chromatography on silica gel (125 g) a mixture of dichloromethane and methanol (9:1) as eluent

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

Procedure: 3-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propanol (2.0 g, 0.0079 mol, prepared as described in example 10) was dissolved in dry THF (25 ml) under an atmosphere of nitrogen, and triethylamine (2.75 ml) was added. Methanesulfonyl chloride (0.61 ml, 0.0079 mol) was added dropwise and when addition was complete the reaction mixture was stirred for 45 minutes. The mixture was filtered and 3-pyrrolidinacetic acid methyl ester (2.4 g, 0.012 mol) was added to the filtrate. The mixture was heated at reflux temperature for 4 h and then stirred at room temperature for 48 h. Triethylamine (2.2 ml) was added and the mixture was heated at reflux temperature for 24 h. After cooling to room temperature the solvent was removed by evaporation in vacuo. The residue was purified by column chromatography on silica gel (125 g) using a mixture of dichloromethane and methanol (9:1) as eluent, affording 0.9 g (27%) of 1-(3-(10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propyl)-3-pyrrolidinacetic acid methyl ester as an oil. Rf : 0.15 (SiO2 ; dichloromethane/methanol/acetic acid=20:2:1). when addition The mixture was filtered The mixture was heated at reflux temperature for 4 h stirred at room temperature for 48 h the mixture was heated at reflux temperature for 24 h was removed by evaporation in vacuo The residue was purified by column chromatography on silica gel (125 g) a mixture of dichloromethane and methanol (9:1) as eluent

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: 3-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propanol (2.0 g, 0.0079 mol, prepared as described in example 10) was dissolved in dry THF (25 ml) under an atmosphere of nitrogen, and triethylamine (2.75 ml) was added. Methanesulfonyl chloride (0.61 ml, 0.0079 mol) was added dropwise and when addition was complete the reaction mixture was stirred for 45 minutes. The mixture was filtered and 3-pyrrolidinacetic acid methyl ester (2.4 g, 0.012 mol) was added to the filtrate. The mixture was heated at reflux temperature for 4 h and then stirred at room temperature for 48 h. Triethylamine (2.2 ml) was added and the mixture was heated at reflux temperature for 24 h. After cooling to room temperature the solvent was removed by evaporation in vacuo. The residue was purified by column chromatography on silica gel (125 g) using a mixture of dichloromethane and methanol (9:1) as eluent, affording 0.9 g (27%) of 1-(3-(10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)-1-propyl)-3-pyrrolidinacetic acid methyl ester as an oil. Rf : 0.15 (SiO2 ; dichloromethane/methanol/acetic acid=20:2:1). when addition The mixture was filtered The mixture was heated at reflux temperature for 4 h stirred at room temperature for 48 h the mixture was heated at reflux temperature for 24 h was removed by evaporation in vacuo The residue was purified by column chromatography on silica gel (125 g) a mixture of dichloromethane and methanol (9:1) as eluent

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-[2-(2-oxopiperidin-1-yl)phenyl]ethyl 4-methylbenzenesulfonate a2-3 (2.85 g, 7.65 mmol, 1 eq) in DMF (10 ml) at room temperature are added diisopropylethylamine (2.65 ml, 15.30 mmol, 2 eq) and methylpyrrolidin-3-ylacetate a13-0 (1.08 g, 7.65 mmol, 1 eq). The mixture is stirred at 80° C. overnight. The solvent is removed under vacuum. The residue obtained is purified by chromatography over silicagel (eluent: CH2Cl2/EtOH 95/5) to afford 1.05 g of methyl (1-{2-[2-(2-oxopiperidin-1-yl)phenyl]ethyl}pyrrolidin-3-yl)acetate a13-1 as a yellow oil. The solvent is removed under vacuum The residue obtained is purified by chromatography over silicagel (eluent: CH2Cl2/EtOH 95/5)

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

Procedure: A mixture of 44.5 g. (0.138 mole) of methyl 3-pyrrolidineacetate hexamate, 40.3 g. (0.140 mole) of 4,4-diphenyl-3-butenyl bromide and 38.2 g. (0.276 mole) of potassium carbonate in 400 ml. of acetone was refluxed for 43 hours. The mixture was chilled, filtered, concentrated and chromatographed on silica gel to give methyl 1-(4,4-diphenyl-3-butenyl)-3-pyrrolidineacetate. A mixture of 44.5 g The mixture was chilled filtered concentrated chromatographed on silica gel

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

Procedure: The above prepared methyl 1-benzyl-3-pyrrolidineacetate hexamate was reduced in three portions, using 3.9 g. of 10% palladium on carbon in 200 ml. of absolute ethanol, for one hour at 50° C. The reaction mixture was filtered and concentrated to give methyl 3-pyrrolidineacetate hexamate, m.p. 68.5°-69.5° C. The reaction mixture was filtered concentrated