N-[(2-fluorophenyl)methyl]ethanamine

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

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

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

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-(2-Fluorobenzyl)ethanamine (0.554 g, 3.615 mmol) was dissolved in DMF (10 ml). 3-(4-hydroxyphenyl)propanoic acid (0.546 g, 3.286 mmol) was added and the mixture was cooled to 0° C. N-[(1H-1,2,3-benzotriazol-1-yloxy)(dimethylamino)-methylene]-N-methylmethanaminium tetrafluoroborate (1.161 g, 3.615 mmol) and N-ethyl-N,N-diisopropylamine (0.892 g, 6.901 mmol) was added. The solution was stirred overnight at room temperature. EtOAc (20 ml) was added and the organic phase was washed with two portions of Na2CO3 (2×20 ml, aq). The organic layer was dried (MgSO4) and the solvent was removed by evaporation. The crude was purified by preparative HPLC (starting with isocratic acetonitrile/buffer 60/40 and then the acetonitrile concentration was increased to 100%, the buffer was a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min). The product-containing fractions were pooled and the acetonitrile was removed by evaporation. EtOAc (10 ml) was added and the organic phase was washed with two portions of brine and dried (MgSO4) and then solvent was removed by evaporation to give 0.803 g of N-ethyl-N-(2-fluorobenzyl)-3-(4-hydroxyphenyl)propanamide (yield 81.1%). the organic phase was washed with two portions of Na2CO3 (2×20 ml, aq) The organic layer was dried (MgSO4) the solvent was removed by evaporation The crude was purified by preparative HPLC ( the acetonitrile concentration was increased to 100% a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min) the acetonitrile was removed by evaporation EtOAc (10 ml) was added the organic phase was washed with two portions of brine dried (MgSO4) solvent was removed by evaporation

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-(2-Fluorobenzyl)ethanamine (0.554 g, 3.615 mmol) was dissolved in DMF (10 ml). (4-Hydroxyphenyl)acetic acid (0.500 g, 3.286) was added and the mixture was cooled to 0° C. N-[(1H-1,2,3-Benzotriazol-1-yloxy)(dimethylamino)methylene]-N-methylmethanaminium tetrafluoroborate (1.161 g, 3.615 mmol) and N-ethyl-N,N-diisopropylamine (0.892 g, 6.901 mmol) were added. The solution was stirred overnight at room temperature. EtOAc (20 ml) was added and the organic phase was washed with two portions of Na2CO3 (2×20 ml, aq). The organic layer was dried (MgSO4) and the solvent was removed by evaporation. The crude was purified by preparative HPLC (started with isocratic acetonitrile/buffer 60/40 and then the acetonitrile concentration was increased to 100%, the buffer was a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min). The product-containing fractions were pooled and the acetonitrile was removed by evaporation. EtOAc (10 ml) was added and the organic phase was washed with two portions of brine and dried (MgSO4) and the solvent was removed by evaporation to give 0.69 g of N-ethyl-N-(2-fluorobenzyl)-2-(4-hydroxyphenyl)acetamide (yield 73.1%). the organic phase was washed with two portions of Na2CO3 (2×20 ml, aq) The organic layer was dried (MgSO4) the solvent was removed by evaporation The crude was purified by preparative HPLC ( the acetonitrile concentration was increased to 100% a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min) the acetonitrile was removed by evaporation EtOAc (10 ml) was added the organic phase was washed with two portions of brine dried (MgSO4) the solvent was removed by evaporation

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

Procedure: [4-(2-{[2-(Methoxycarbonyl)phenyl]thio}ethyl)phenoxy]acetic acid (0.250 g, 0.722 mmol) was dissolved in DCM (10 ml), N-(2-fluorobenzyl)ethanamine (0.105 g, 0.686 mmol) was added. N-[(1H-1,2,3-benzotriazol-1-yloxy)(dimethylamino)methylene]-N-methylmethanaminium tetrafluoroborate (0.255 g, 0.0.794 mmol) and N-ethyl-N,N-diisopropylamine (0.187 g, 1.443 mmol) were added. The solution was stirred for 2 hours at room temperature. The crude was purified by flash chromatography (started with isocratic DCM 100% and then the MeOH concentration was increased from 0.5% to 20%, (silica gel 60 0.004-0.063 mm). The product containing fractions were pooled and the EtOAc was removed by evaporation. The substance needed to be purified once more and it was purified by preparative HPLC (started with isocratic acetonitrile/buffer 60/40 and then the acetonitrile concentration was increased to 100%, the buffer was a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min). The product containing fractions were pooled and the acetonitrile was removed by evaporation. The ammonium acetate was removed by freeze drying the product overnight to give 0.1 g of methyl 2-{[2-(4-{2-[ethyl(2-fluorobenzyl)amino]-2-oxoethoxy}phenyl)ethyl]thio}benzoate (yield 29.1%). The crude was purified by flash chromatography ( the MeOH concentration was increased from 0.5% to 20%, (silica gel 60 0.004-0.063 mm) The product containing fractions the EtOAc was removed by evaporation to be purified once more it was purified by preparative HPLC ( the acetonitrile concentration was increased to 100% a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min) The product containing fractions the acetonitrile was removed by evaporation The ammonium acetate was removed by freeze drying the product overnight

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

Procedure: (4-{2-[2-(Methoxycarbonyl)phenoxy]ethyl}phenoxy)acetic acid (0.200 mg, 0.605 mmol) was dissolved in DMF and cooled on an ice-bath N-(2-Fluorobenzyl) ethanamine (0.102 g, 0.666 mmol), TBTU (0.214 g, 0.666 mmol) and DIPEA (0.22 ml, 1.271 mmol) was added. The reaction mixture was stirred for 16 h at room temperature. EtOAc was added and the organic phase was washed with two portions of 20 ml NaCO3 (sat). The organic layer was dried with MgSO4 and the solvent was removed by evaporation. The crude was purified by preparative HPLC (starting with acetonitrile/buffer 60/40 and then increasing the acetonitrile concentration to 100% acetonitrile in 25 min, the buffer was a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M), column KR-100-7-C8, 50*500, flow 80 ml/min). 145 mg of the desired product was obtained after freeze drying (yield 71.1%). was added the organic phase was washed with two portions of 20 ml NaCO3 (sat) The organic layer was dried with MgSO4 the solvent was removed by evaporation The crude was purified by preparative HPLC ( increasing the acetonitrile concentration to 100% acetonitrile in 25 min a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M), column KR-100-7-C8, 50*500, flow 80 ml/min)

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

Procedure: (4-{2-[2-(Methoxycarbonyl)phenoxy]ethyl}phenoxy)acetic acid (0.200 mg, 0.605 mmol) was dissolved in DMF and cooled on an ice-bath N-(2-Fluorobenzyl) ethanamine (0.102 g, 0.666 mmol), TBTU (0.214 g, 0.666 mmol) and DIPEA (0.22 ml, 1.271 mmol) was added. The reaction mixture was stirred for 16 h at room temperature. EtOAc was added and the organic phase was washed with two portions of 20 ml NaCO3 (sat). The organic layer was dried with MgSO4 and the solvent was removed by evaporation. The crude was purified by preparative HPLC (starting with acetonitrile/buffer 60/40 and then increasing the acetonitrile concentration to 100% acetonitrile in 25 min, the buffer was a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M), column KR-100-7-C8, 50*500, flow 80 ml/min). 145 mg of the desired product was obtained after freeze drying (yield 71.1%). was added the organic phase was washed with two portions of 20 ml NaCO3 (sat) The organic layer was dried with MgSO4 the solvent was removed by evaporation The crude was purified by preparative HPLC ( increasing the acetonitrile concentration to 100% acetonitrile in 25 min a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M), column KR-100-7-C8, 50*500, flow 80 ml/min)

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

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

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

Procedure: This material was prepared in analogy to example 251 step B) from 2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-one, diphosgene and ethyl-(2-fluoro-benzyl)-amine. The reaction mixture was stirred for 1 h at room temperature, 2 h at 50° C. and 1 h at 80° C. before subjecting to work-up and purification. MS (ESI): 494.5 (MH+). purification

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-(2-Fluorobenzyl)ethanamine (0.077 g, 0.500 mmol) was dissolved in DMF (10 ml), (4-{[2-(methoxycarbonyl)phenoxy]methyl}phenyl)acetic acid (0.150 g, 0.500 mmol) was added and the mixture was cooled to 0° C. N-[(1H-1,2,3-benzotriazol-1yloxy)(dimethylamino)methylene]-N-methylmethanaminium tetrafluoroborate (0.176 g, 0.549 mmol) and N-ethyl-N,N-diisopropylamine (0.136 g, 1.049 mmol) was added. The solution was stirred overnight at room temperature. EtOAc (20 ml) was added and the organic phase was washed with two portions of Na2CO3 (2×20 ml, aq). The organic layer was dried (MgSO4) and the solvent was removed by evaporation. The crude was purified by preparative HPLC (started with isocratic acetonitrile/buffer 60/40 and then the acetonitrile concentration was increased to 100%, the buffer was a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min). The product containing fractions were pooled and the acetonitrile was removed by evaporation. EtOAc (10 ml) was added and the organic phase was washed with two portions of brine and dried (MgSO4) and the solvent was removed by evaporation to give 0.146 g of methyl 2-[(4-{2-[ethyl(2-fluorobenzyl)amino]-2-oxoethyl}benzyl)oxy]benzoate (yield 67.1%). the organic phase was washed with two portions of Na2CO3 (2×20 ml, aq) The organic layer was dried (MgSO4) the solvent was removed by evaporation The crude was purified by preparative HPLC ( the acetonitrile concentration was increased to 100% a mixture of acetonitrile/water 10/90 and ammonium acetate (0.1 M, column KR-100-7-C8, 50 mm×250 mm, flow 40 ml/min) The product containing fractions the acetonitrile was removed by evaporation EtOAc (10 ml) was added the organic phase was washed with two portions of brine dried (MgSO4) the solvent was removed by evaporation