tert-butyl N-[(2R)-2-hydroxypropyl]carbamate

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

Procedure: 4-Bromophenol (0.33 g, 1.88 mmol), ((R)-2-hydroxy-propyl)-carbamic acid tert-butyl ester (0.33 g, 1.88 mmol) and triphenylphosphine (0.74 g, 2.82 mmol) were dissolved in anhydrous toluene. A solution of di-tert-butyl azodicarboxylate (0.65 g, 2.82 mmol) in toluene (5 ml) was added slowly ensuring that the temperature did not exceed 35° C. The reaction mixture was heated to 80° C. and stirred overnight. The solvent was removed in vacuo and the residue was dissolved in ethyl acetate and subsequently washed with 1M HCl, water, then brine and dried over magnesium sulfate, filtered and concentrated in vacuo to give the desired product. Yield: 0.62 g, 100. LCMS method: 2, RT: 6.18 min; MI: 330-332 [M+1]. did not exceed 35° C The solvent was removed in vacuo the residue was dissolved in ethyl acetate subsequently washed with 1M HCl, water brine and dried over magnesium sulfate filtered concentrated in vacuo

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

Procedure: (R)-4-[1-(1-Aminopropan-2-yl)-1H-pyrazol-3-yl]-2-chlorobenzonitrile was prepared using the method of Example 34(c) starting from 2-chloro-4-(1H-pyrazol-3-yl)benzonitrile and (R)-tert-butyl 2-hydroxypropylcarbamate. 1H NMR (400 MHz, CDCl3): 1.24 (21-1, broad s), 1.54 (3H, d), 3.05 (1H, distorted dd), 3.17 (1H, distorted dd), 4.34 (1H, m), 6.61 (1H, d), 7.52 (1H, d), 7.66 (1H, d), 7.78 (1H, dd), 7.98 (1H, d).

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

Procedure: The title compound was prepared from 4-(1H-pyrazol-5-yl)-2-(trifluoromethyl)benzonitrile (1.4 g, 5.90 mmol), (R)-tert-butyl 2-hydroxypropylcarbamate (1.03 g, 5.90 mmol), triphenylphosphine (2.32 g, 8.85 mmol) and di-tert-butyl azodicarboxylate (2.04 g, 8.85 mmol) using the method of Example 34(c). Yield 0.429 g. 1H NMR (400 MHz; MeOD): δ 1.52 (d, 3H), 2.98 (dd, 1H), 3.12 (dd, 1H), 4.43 (m, 1H), 6.87 (d, 1H), 7.77 (d, 1H), 7.98 (m, 1H), 8.21 (m, 1H), 8.33 (m, 1H).

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

Procedure: The title compound was prepared from 4-(1H-pyrazol-5-yl)-2-(trifluoromethyl)benzonitrile (1.4 g, 5.90 mmol), (R)-tert-butyl 2-hydroxypropylcarbamate (1.03 g, 5.90 mmol), triphenylphosphine (2.32 g, 8.85 mmol) and di-tert-butyl azodicarboxylate (2.04 g, 8.85 mmol) using the method of Example 34(c). Yield 0.429 g. 1H NMR (400 MHz; MeOD): δ 1.52 (d, 3H), 2.98 (dd, 1H), 3.12 (dd, 1H), 4.43 (m, 1H), 6.87 (d, 1H), 7.77 (d, 1H), 7.98 (m, 1H), 8.21 (m, 1H), 8.33 (m, 1H).

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

Procedure: 2-Chloro-4-(1H-pyrazol-3-yl)benzonitrile (1.45 g, 7.13 mmol) was reacted with N-Boc-(R)-1-amino-2-propanol (1.50 g, 8.56 mmol) in the presence of triphenylphosphine and DIAD using the method of Example 99. After Boc-deprotection 843 mg (45%) of the title compound was obtained. 1H-NMR (400 MHz; d6-DMSO): δ 1.43 (d, 3H), 3.53-3.67 (m, 1H), 4.29-4.38 (m, 1H), 4.69-4.83 (m, 1H), 6.96 (d, 1H), 7.89 (d, 1H), 7.95 (dd, 1H), 7.97 (dd, 1H), 8.10-8.12 (m, 1H). m/z [260.7+1].

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

Procedure: 4-Bromophenol (0.33 g, 1.88 mmol), ((R)-2-hydroxy-propyl)-carbamic acid tert-butyl ester (0.33 g, 1.88 mmol) and triphenylphosphine (0.74 g, 2.82 mmol) were dissolved in anhydrous toluene. A solution of di-tert-butyl azodicarboxylate (0.65 g, 2.82 mmol) in toluene (5 ml) was added slowly ensuring that the temperature did not exceed 35° C. The reaction mixture was heated to 80° C. and stirred overnight. The solvent was removed in vacuo and the residue was dissolved in ethyl acetate and subsequently washed with 1M HCl, water, then brine and dried over magnesium sulfate, filtered and concentrated in vacuo to give the desired product. Yield: 0.62 g, 100. LCMS method: 2, RT: 6.18 min; MI: 330-332 [M+1]. did not exceed 35° C The solvent was removed in vacuo the residue was dissolved in ethyl acetate subsequently washed with 1M HCl, water brine and dried over magnesium sulfate filtered concentrated in vacuo

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

Procedure: To a solution of tert-butyl [(2R)-2-hydroxypropyl]carbamate (0.4 g, 2.28 mmol) in THF (5 mL), sodium hydride (0.06 g, 2.51 mmol) was added at 0° C. The resulting solution was stirred for 30 minutes at that temperature and then methyl iodide (0.14 mL, 2.28 mmol) was added. The reaction was warmed to room temperature slowly and allowed to stir for an additional two hours. The reaction was quenched by adding water and extracted with ethyl acetate. The extract was washed with sodium bicarbonate solution, water and brine. It was dried over magnesium sulfate and concentrated. The desired product was obtained as clear oil (0.31 g) and it did not need any further purification. to stir for an additional two hours The reaction was quenched by adding water extracted with ethyl acetate The extract was washed with sodium bicarbonate solution, water and brine It was dried over magnesium sulfate concentrated

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

Procedure: To a solution of tert-butyl [(2R)-2-hydroxypropyl]carbamate (2.7 g) in CH2Cl2 (41 ml) were added N,N,N′,N′-tetramethylnaphthalene-1,8-diamine (3.63 g) and trimethyloxonium tetrafluoroborate (2.51 g), and the whole was stirred for 3 hours at room temperature. Water was added to the mixture, and the whole was extracted with EtOAc, and the extract was washed with water and brine and dried over MgSO4. Concentration under reduced pressure gave tert-butyl [(2R)-2-methoxypropyl]carbamate (2.73 g). the whole was extracted with EtOAc the extract was washed with water and brine dried over MgSO4 Concentration under reduced pressure

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

Procedure: 4-Bromophenol (0.33 g, 1.88 mmol), ((R)-2-hydroxy-propyl)-carbamic acid tert-butyl ester (0.33 g, 1.88 mmol) and triphenylphosphine (0.74 g, 2.82 mmol) were dissolved in anhydrous toluene. A solution of di-tert-butyl azodicarboxylate (0.65 g, 2.82 mmol) in toluene (5 ml) was added slowly ensuring that the temperature did not exceed 35° C. The reaction mixture was heated to 80° C. and stirred overnight. The solvent was removed in vacuo and the residue was dissolved in ethyl acetate and subsequently washed with 1M HCl, water, then brine and dried over magnesium sulfate, filtered and concentrated in vacuo to give the desired product. Yield: 0.62 g, 100. LCMS method: 2, RT: 6.18 min; MI: 330-332 [M+1]. did not exceed 35° C The solvent was removed in vacuo the residue was dissolved in ethyl acetate subsequently washed with 1M HCl, water brine and dried over magnesium sulfate filtered concentrated in vacuo

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

Procedure: The title compound was prepared using the procedure described in Example 3(g) starting from 2-chloro-6-fluoro-4-(1H-pyrazol-3-yl)benzonitrile (13.5 mmol, 3 g) and (R)-tert-butyl (2-hydroxypropyl)carbamate (27 mmol, 4.72 g). Yield 1.3 g. 1H-NMR (400 MHz; CDCl3): δ 1.47 (d, 3H), 3.02-3.19 (m, 2H), 4.30-4.38 (m, 1H), 6.60 (d, 1H), 7.52-7.59 (m, 2H), 7.75 (s, 1H). LC-MS: [M+1]=279.17.

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

Procedure: To a solution of methyl 4-bromo-3-hydroxythiophene-2-carboxylate (237 mg), tert-butyl [(2R)-2-hydroxypropyl]carbamate (175 mg), tri-n-butylphosphine (0.75 mL) and THF (10 mL) was added dropwise diethyl azodicarboxylate (40% toluene solution, 1.4 mL) at room temperature, and the mixture was stirred for 2 hr. The reaction solution was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (solvent gradient; 0→15% ethyl acetate/hexane) to give the title compound (239 mg, 65%) as a colorless oil. The reaction solution was concentrated under reduced pressure the residue was purified by silica gel column chromatography (solvent gradient; 0→15% ethyl acetate/hexane)

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

Procedure: 4-Bromophenol (0.33 g, 1.88 mmol), ((R)-2-hydroxy-propyl)-carbamic acid tert-butyl ester (0.33 g, 1.88 mmol) and triphenylphosphine (0.74 g, 2.82 mmol) were dissolved in anhydrous toluene. A solution of di-tert-butyl azodicarboxylate (0.65 g, 2.82 mmol) in toluene (5 ml) was added slowly ensuring that the temperature did not exceed 35° C. The reaction mixture was heated to 80° C. and stirred overnight. The solvent was removed in vacuo and the residue was dissolved in ethyl acetate and subsequently washed with 1M HCl, water, then brine and dried over magnesium sulfate, filtered and concentrated in vacuo to give the desired product. Yield: 0.62 g, 100. LCMS method: 2, RT: 6.18 min; MI: 330-332 [M+1]. did not exceed 35° C The solvent was removed in vacuo the residue was dissolved in ethyl acetate subsequently washed with 1M HCl, water brine and dried over magnesium sulfate filtered concentrated in vacuo