4-[(4-fluorophenyl)methyl]piperidin-4-ol;hydrochloride

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

Procedure: A suspension of 2-(pyrimidin-4-yl)nicotinic acid dihydrochloride (0.25 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.22 g), HATU (0.52 g) and triethylamine (0.76 mL) in DMF (3 mL) was stirred overnight at room temperature. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and recrystallized from ethyl acetate/hexane to give the title compound (0.050 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) recrystallized from ethyl acetate/hexane

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

Procedure: A suspension of 2-chloronicotinic acid (0.15 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.26 g), HATU (0.43 g) and triethylamine (0.66 mL) in DMF (5 mL) was stirred at room temperature for 4 hr. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was dissolved in DME (5.0 mL), and pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added thereto, and the mixture was stirred at 140° C. for 1 hr under microwave irradiation. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and then purified by preparative HPLC(C18, mobile phase: water/acetonitrile (containing 0.1% TFA)), and the obtained fraction was concentrated under reduced pressure. To the residue was added saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure to give the title compound (0.21 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was dissolved in DME (5.0 mL) pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added the mixture was stirred at 140° C. for 1 hr under microwave irradiation The reaction mixture was diluted with water the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) purified by preparative HPLC(C18, mobile phase water/acetonitrile (containing 0.1% TFA)), and the obtained fraction was concentrated under reduced pressure To the residue was added saturated aqueous sodium hydrogen carbonate solution the mixture was extracted with ethyl acetate The extract was dried over anhydrous sodium sulfate the solvent was evaporated under reduced pressure

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

Procedure: To a solution of tert-butyl 4-(4-fluorobenzyl)-4-hydroxypiperidine-1-carboxylate (2.0 g) in ethanol (10 mL) was added 2.0 M HCl/ethanol solution (20 mL), and the mixture was stirred at room temperature for 3 hr. The solvent was evaporated under reduced pressure, and the obtained solid was recrystallized from ethanol/hexane to give the title compound (1.4 g). The solvent was evaporated under reduced pressure the obtained solid was recrystallized from ethanol/hexane

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

Procedure: A suspension of 2-(pyrimidin-4-yl)nicotinic acid dihydrochloride (0.25 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.22 g), HATU (0.52 g) and triethylamine (0.76 mL) in DMF (3 mL) was stirred overnight at room temperature. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and recrystallized from ethyl acetate/hexane to give the title compound (0.050 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) recrystallized from ethyl acetate/hexane

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

Procedure: A suspension of 2-chloronicotinic acid (0.15 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.26 g), HATU (0.43 g) and triethylamine (0.66 mL) in DMF (5 mL) was stirred at room temperature for 4 hr. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was dissolved in DME (5.0 mL), and pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added thereto, and the mixture was stirred at 140° C. for 1 hr under microwave irradiation. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and then purified by preparative HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% TFA)), and the obtained fraction was concentrated under reduced pressure. To the residue was added saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure to give the title compound (0.21 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was dissolved in DME (5.0 mL) pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added the mixture was stirred at 140° C. for 1 hr under microwave irradiation The reaction mixture was diluted with water the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) purified by preparative HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% TFA)) the obtained fraction was concentrated under reduced pressure To the residue was added saturated aqueous sodium hydrogen carbonate solution the mixture was extracted with ethyl acetate The extract was dried over anhydrous sodium sulfate the solvent was evaporated under reduced pressure

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

Procedure: To a solution of tert-butyl 4-(4-fluorobenzyl)-4-hydroxypiperidine-1-carboxylate (2.0 g) in ethanol (10 mL) was added 2.0 M HCl/ethanol solution (20 mL), and the mixture was stirred at room temperature for 3 hr. The solvent was evaporated under reduced pressure, and the obtained solid was recrystallized from ethanol/hexane to give the title compound (1.4 g). The solvent was evaporated under reduced pressure the obtained solid was recrystallized from ethanol/hexane

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

Procedure: A suspension of 2-(pyrimidin-4-yl)nicotinic acid dihydrochloride (0.25 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.22 g), HATU (0.52 g) and triethylamine (0.76 mL) in DMF (3 mL) was stirred overnight at room temperature. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and recrystallized from ethyl acetate/hexane to give the title compound (0.050 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) recrystallized from ethyl acetate/hexane

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

Procedure: A suspension of 2-chloronicotinic acid (0.15 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.26 g), HATU (0.43 g) and triethylamine (0.66 mL) in DMF (5 mL) was stirred at room temperature for 4 hr. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was dissolved in DME (5.0 mL), and pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added thereto, and the mixture was stirred at 140° C. for 1 hr under microwave irradiation. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and then purified by preparative HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% TFA)), and the obtained fraction was concentrated under reduced pressure. To the residue was added saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure to give the title compound (0.21 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was dissolved in DME (5.0 mL) pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added the mixture was stirred at 140° C. for 1 hr under microwave irradiation The reaction mixture was diluted with water the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) purified by preparative HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% TFA)) the obtained fraction was concentrated under reduced pressure To the residue was added saturated aqueous sodium hydrogen carbonate solution the mixture was extracted with ethyl acetate The extract was dried over anhydrous sodium sulfate the solvent was evaporated under reduced pressure

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

Procedure: A suspension of 2-chloronicotinic acid (0.15 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.26 g), HATU (0.43 g) and triethylamine (0.66 mL) in DMF (5 mL) was stirred at room temperature for 4 hr. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was dissolved in DME (5.0 mL), and pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added thereto, and the mixture was stirred at 140° C. for 1 hr under microwave irradiation. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and then purified by preparative HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% TFA)), and the obtained fraction was concentrated under reduced pressure. To the residue was added saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure to give the title compound (0.21 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was dissolved in DME (5.0 mL) pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added the mixture was stirred at 140° C. for 1 hr under microwave irradiation The reaction mixture was diluted with water the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) purified by preparative HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% TFA)) the obtained fraction was concentrated under reduced pressure To the residue was added saturated aqueous sodium hydrogen carbonate solution the mixture was extracted with ethyl acetate The extract was dried over anhydrous sodium sulfate the solvent was evaporated under reduced pressure

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

Procedure: To a solution of tert-butyl 4-(4-fluorobenzyl)-4-hydroxypiperidine-1-carboxylate (2.0 g) in ethanol (10 mL) was added 2.0 M HCl/ethanol solution (20 mL), and the mixture was stirred at room temperature for 3 hr. The solvent was evaporated under reduced pressure, and the obtained solid was recrystallized from ethanol/hexane to give the title compound (1.4 g). The solvent was evaporated under reduced pressure the obtained solid was recrystallized from ethanol/hexane

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

Procedure: A suspension of 2-(pyrimidin-4-yl)nicotinic acid dihydrochloride (0.25 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.22 g), HATU (0.52 g) and triethylamine (0.76 mL) in DMF (3 mL) was stirred overnight at room temperature. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and recrystallized from ethyl acetate/hexane to give the title compound (0.050 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) recrystallized from ethyl acetate/hexane

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

Procedure: A suspension of 2-chloronicotinic acid (0.15 g), 4-(4-fluorobenzyl)-4-hydroxypiperidine hydrochloride (0.26 g), HATU (0.43 g) and triethylamine (0.66 mL) in DMF (5 mL) was stirred at room temperature for 4 hr. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was dissolved in DME (5.0 mL), and pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added thereto, and the mixture was stirred at 140° C. for 1 hr under microwave irradiation. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane), and then purified by preparative HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% TFA)), and the obtained fraction was concentrated under reduced pressure. To the residue was added saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure to give the title compound (0.21 g). the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was dissolved in DME (5.0 mL) pyridine-4-boronic acid (0.13 g), sodium carbonate (0.20 g), tetrakis(triphenylphosphine)palladium(0) (0.055 g) and water (1.0 mL) were added the mixture was stirred at 140° C. for 1 hr under microwave irradiation The reaction mixture was diluted with water the mixture was extracted with ethyl acetate The extract was washed with saturated brine dried over anhydrous sodium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) purified by preparative HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% TFA)) the obtained fraction was concentrated under reduced pressure To the residue was added saturated aqueous sodium hydrogen carbonate solution the mixture was extracted with ethyl acetate The extract was dried over anhydrous sodium sulfate the solvent was evaporated under reduced pressure