tert-butyl 3-(bromomethyl)benzoate

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

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

Procedure: Sodium hydride (12.1 mg, 0.31 mmol; 60% suspension in mineral oil) is washed with pentane (3×3 ml), then treated with a solution of 4-{5-(cyclopropylcarbonyl)-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidin-4-yl}benzonitrile (Example 22) (100 mg, 0.235 mmol) in tetrahydrofuran (5 ml). After 5 minutes, the reaction is treated with a solution of tert.-butyl 3-(bromomethyl)benzoate (77 mg, 0.28 mmol) in tetrahydrofuran (5 ml) and then stirred at room temperature overnight (16 h). The reaction mixture is quenched with water (50 ml) and extracted with ethyl acetate (3×150 ml). The combined organic phases are washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. The crude product is purified by preparative HPLC (RP18 column; eluent: acetonitrile/0.1% aq. formic acid 10:90→90:10). The reaction mixture is quenched with water (50 ml) extracted with ethyl acetate (3×150 ml) The combined organic phases are washed with brine dried over anhydrous magnesium sulfate filtered concentrated in vacuo The crude product is purified by preparative HPLC (RP18 column; eluent: acetonitrile/0.1% aq. formic acid 10:90→90:10)

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

Procedure: The crude 3-methyl-benzoic acid tert-butyl ester was reacted with NBS (0.31 g, 1.726 mmol), AIBN (0.28 g, 1.726 mmol) in CCl4 (30 mL) according to the procedure for the preparation of compound 55 in example 1. After separation by chromatography eluted with CHCl3—MeOH (50:1), a mixture of two products was obtained. One of them was the product (61% pure) with MS (ESI) 272.76 (M+H+). This mixture was not further separated and directly used in the next step reaction. After separation by chromatography eluted with CHCl3—MeOH (50:1) a mixture of two products was obtained This mixture was not further separated directly used in the next step reaction

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

Procedure: Sodium hydride (12.1 mg, 0.31 mmol; 60% suspension in mineral oil) is washed with pentane (3×3 ml), then treated with a solution of 4-{5-(cyclopropylcarbonyl)-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidin-4-yl}benzonitrile (Example 22) (100 mg, 0.235 mmol) in tetrahydrofuran (5 ml). After 5 minutes, the reaction is treated with a solution of tert.-butyl 3-(bromomethyl)benzoate (77 mg, 0.28 mmol) in tetrahydrofuran (5 ml) and then stirred at room temperature overnight (16 h). The reaction mixture is quenched with water (50 ml) and extracted with ethyl acetate (3×150 ml). The combined organic phases are washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. The crude product is purified by preparative HPLC (RP18 column; eluent: acetonitrile/0.1% aq. formic acid 10:90→90:10). The reaction mixture is quenched with water (50 ml) extracted with ethyl acetate (3×150 ml) The combined organic phases are washed with brine dried over anhydrous magnesium sulfate filtered concentrated in vacuo The crude product is purified by preparative HPLC (RP18 column; eluent: acetonitrile/0.1% aq. formic acid 10:90→90:10)

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

Procedure: Sodium hydride (12.1 mg, 0.31 mmol; 60% suspension in mineral oil) is washed with pentane (3×3 ml), then treated with a solution of 4-{5-(cyclopropylcarbonyl)-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidin-4-yl}benzonitrile (Example 22) (100 mg, 0.235 mmol) in tetrahydrofuran (5 ml). After 5 minutes, the reaction is treated with a solution of tert.-butyl 3-(bromomethyl)benzoate (77 mg, 0.28 mmol) in tetrahydrofuran (5 ml) and then stirred at room temperature overnight (16 h). The reaction mixture is quenched with water (50 ml) and extracted with ethyl acetate (3×150 ml). The combined organic phases are washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. The crude product is purified by preparative HPLC (RP18 column; eluent: acetonitrile/0.1% aq. formic acid 10:90→90:10). The reaction mixture is quenched with water (50 ml) extracted with ethyl acetate (3×150 ml) The combined organic phases are washed with brine dried over anhydrous magnesium sulfate filtered concentrated in vacuo The crude product is purified by preparative HPLC (RP18 column; eluent: acetonitrile/0.1% aq. formic acid 10:90→90:10)

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

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

Procedure: Sodium hydride (0.0699 g, 2.91 mol) was added portionwise at 0° C. to benzyl 1-cyclohexyl-4-oxo-1,3,8-triazaspiro[4.5]decane-8-carboxylate (1.03 g, 2.77 mmol) in N,N-dimethylformamide (5 mL) and stirred at 0° C. for 10 minutes. tert-Butyl 3-(bromomethyl)benzoate (0.75 g, 2.77 mmol) was added dropwise at 0° C., the mixture allowed to warm to room temperature, and stirred overnight. The reaction was diluted with water and extracted with ethyl acetate. The extracts were washed with water and brine, dried (MgSO4) and evaporated. The residue was purified by PTLC (50% ethyl acetate/hexanes) to give product as an oil (1.37 g, 88%); 1H NMR (DMSO-d6); δ0.97 (m, 1H); 1.20 (m, 4H); 1.53 (s, 9H); 1.53-1.69 (m, 9H); 2.60 (m, 1H); 3.59 (m, 2H); 3.73 (m, 2H); 4.47 (s, 2H); 5.09 (s, 2H); 7.30-7.39 (m, 5H); 7.45-7.50 (m, 2H); 7.73 (m, 1H); 7.81 (m, 1H); MS for C33H43N3O5 m/z 562 (M+H)+. to warm to room temperature stirred overnight extracted with ethyl acetate The extracts were washed with water and brine dried (MgSO4) evaporated The residue was purified by PTLC (50% ethyl acetate/hexanes)

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

Procedure: Sodium hydride (0.0699 g, 2.91 mol) was added portionwise at 0° C. to benzyl 1-cyclohexyl-4-oxo-1,3,8-triazaspiro[4.5]decane-8-carboxylate (1.03 g, 2.77 mmol) in N,N-dimethylformamide (5 mL) and stirred at 0° C. for 10 minutes. tert-Butyl 3-(bromomethyl)benzoate (0.75 g, 2.77 mmol) was added dropwise at 0° C., the mixture allowed to warm to room temperature, and stirred overnight. The reaction was diluted with water and extracted with ethyl acetate. The extracts were washed with water and brine, dried (MgSO4) and evaporated. The residue was purified by PTLC (50% ethyl acetate/hexanes) to give product as an oil (1.37 g, 88%); 1H NMR (DMSO-d6); δ0.97 (m, 1H); 1.20 (m, 4H); 1.53 (s, 9H); 1.53-1.69 (m, 9H); 2.60 (m, 1H); 3.59 (m, 2H); 3.73 (m, 2H); 4.47 (s, 2H); 5.09 (s, 2H); 7.30-7.39 (m, 5H); 7.45-7.50 (m, 2H); 7.73 (m, 1H); 7.81 (m, 1H); MS for C33H43N3O5 m/z 562 (M+H)+. to warm to room temperature stirred overnight extracted with ethyl acetate The extracts were washed with water and brine dried (MgSO4) evaporated The residue was purified by PTLC (50% ethyl acetate/hexanes)

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

Procedure: A mixture of benzyl 4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (12.5 g, 34.21 mmol, 1 equiv), sodium bis(trimethylsilyl)amide, 1M in tetrahydrofuran (37.63 ml, 37.63 mmol, 1.1 equiv), and tert-butyl 3-(bromomethyl)benzoate (9.27 g, 34.21 mmol, 1 equiv) in N,N-dimethylformamide was stirred for 16 h at ambient temperature. Reaction was diluted with ethyl acetate and the organic layer was washed with water and brine. The combined organic layers were dried over MgSO4 and concentrated in vacuo. The crude residue was purified using the Biotage flash chromatography system (SNAP 100 g cartridge, Rf=0.6, 10%-50% ethyl acetate in hexanes) to afford benzyl 3-(3-(tert-butoxycarbonyl)benzyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (19 g, quant) as a cream solid; 1H NMR (400 MHz, DMSO-d6): δ 1.53 (s, 9H); 1.71 (d, 2H, J=13.6 Hz); 2.37-2.42 (m, 2H); 3.6 (bs, 2H); 4.01-4.03 (m, 2H); 4.61 (s, 2H); 4.64 (s, 2H); 5.14 (d, 2H, J=7.2 Hz); 6.69 (d, 2H, J=8 Hz); 6.79 (t, 2H, J=7.2 Hz); 7.16-7.2 (m, 2H); 7.32-7.39 (m, 5H); 7.49-7.56 (m, 2H); 7.81-7.85 (m, 2H); MS for C33H37N3O5 m/z 556.28 (M+H)+. Reaction the organic layer was washed with water and brine The combined organic layers were dried over MgSO4 concentrated in vacuo The crude residue was purified

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

Procedure: A mixture of benzyl 4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (12.5 g, 34.21 mmol, 1 equiv), sodium bis(trimethylsilyl)amide, 1M in tetrahydrofuran (37.63 ml, 37.63 mmol, 1.1 equiv), and tert-butyl 3-(bromomethyl)benzoate (9.27 g, 34.21 mmol, 1 equiv) in N,N-dimethylformamide was stirred for 16 h at ambient temperature. Reaction was diluted with ethyl acetate and the organic layer was washed with water and brine. The combined organic layers were dried over MgSO4 and concentrated in vacuo. The crude residue was purified using the Biotage flash chromatography system (SNAP 100 g cartridge, Rf=0.6, 10%-50% ethyl acetate in hexanes) to afford benzyl 3-(3-(tert-butoxycarbonyl)benzyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (19 g, quant) as a cream solid; 1H NMR (400 MHz, DMSO-d6): δ 1.53 (s, 9H); 1.71 (d, 2H, J=13.6 Hz); 2.37-2.42 (m, 2H); 3.6 (bs, 2H); 4.01-4.03 (m, 2H); 4.61 (s, 2H); 4.64 (s, 2H); 5.14 (d, 2H, J=7.2 Hz); 6.69 (d, 2H, J=8 Hz); 6.79 (t, 2H, J=7.2 Hz); 7.16-7.2 (m, 2H); 7.32-7.39 (m, 5H); 7.49-7.56 (m, 2H); 7.81-7.85 (m, 2H); MS for C33H37N3O5 m/z 556.28 (M+H)+. Reaction the organic layer was washed with water and brine The combined organic layers were dried over MgSO4 concentrated in vacuo The crude residue was purified

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

Procedure: Sodium hydride (0.0699 g, 2.91 mol) was added portionwise at 0° C. to benzyl 1-cyclohexyl-4-oxo-1,3,8-triazaspiro[4.5]decane-8-carboxylate (1.03 g, 2.77 mmol) in N,N-dimethylformamide (5 mL) and stirred at 0° C. for 10 minutes. tert-Butyl 3-(bromomethyl)benzoate (0.75 g, 2.77 mmol) was added dropwise at 0° C., the mixture allowed to warm to room temperature, and stirred overnight. The reaction was diluted with water and extracted with ethyl acetate. The extracts were washed with water and brine, dried (MgSO4) and evaporated. The residue was purified by PTLC (50% ethyl acetate/hexanes) to give product as an oil (1.37 g, 88%); 1H NMR (DMSO-d6); δ0.97 (m, 1H); 1.20 (m, 4H); 1.53 (s, 9H); 1.53-1.69 (m, 9H); 2.60 (m, 1H); 3.59 (m, 2H); 3.73 (m, 2H); 4.47 (s, 2H); 5.09 (s, 2H); 7.30-7.39 (m, 5H); 7.45-7.50 (m, 2H); 7.73 (m, 1H); 7.81 (m, 1H); MS for C33H43N3O5 m/z 562 (M+H)+. to warm to room temperature stirred overnight extracted with ethyl acetate The extracts were washed with water and brine dried (MgSO4) evaporated The residue was purified by PTLC (50% ethyl acetate/hexanes)

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

Procedure: A mixture of benzyl 4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (12.5 g, 34.21 mmol, 1 equiv), sodium bis(trimethylsilyl)amide, 1M in tetrahydrofuran (37.63 ml, 37.63 mmol, 1.1 equiv), and tert-butyl 3-(bromomethyl)benzoate (9.27 g, 34.21 mmol, 1 equiv) in N,N-dimethylformamide was stirred for 16 h at ambient temperature. Reaction was diluted with ethyl acetate and the organic layer was washed with water and brine. The combined organic layers were dried over MgSO4 and concentrated in vacuo. The crude residue was purified using the Biotage flash chromatography system (SNAP 100 g cartridge, Rf=0.6, 10%-50% ethyl acetate in hexanes) to afford benzyl 3-(3-(tert-butoxycarbonyl)benzyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (19 g, quant) as a cream solid; 1H NMR (400 MHz, DMSO-d6): δ 1.53 (s, 9H); 1.71 (d, 2H, J=13.6 Hz); 2.37-2.42 (m, 2H); 3.6 (bs, 2H); 4.01-4.03 (m, 2H); 4.61 (s, 2H); 4.64 (s, 2H); 5.14 (d, 2H, J=7.2 Hz); 6.69 (d, 2H, J=8 Hz); 6.79 (t, 2H, J=7.2 Hz); 7.16-7.2 (m, 2H); 7.32-7.39 (m, 5H); 7.49-7.56 (m, 2H); 7.81-7.85 (m, 2H); MS for C33H37N3O5 m/z 556.28 (M+H)+. Reaction the organic layer was washed with water and brine The combined organic layers were dried over MgSO4 concentrated in vacuo The crude residue was purified