2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile

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

Procedure: (6,7-difluoro-1H-benzimidazol-1-yl)acetic acid (42 mg, 0.2 mmol) prepared according to scheme 2 is dissolved in CH2Cl2 (2 mL). Triethylamine (83 μL, 0.6 mmol) is added, followed by pivaloyl chloride (25 μL, 0.2 mmol). After 30 minutes, 2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile (35 mg, 0.2 mmol) prepared according to scheme 18 is added dissolved in 1 mL of CH2Cl2. The mixture is stirred overnight at room temperature, concentrated under vacuo and purified on HPLCMS: Waters prep LCMS, 27 ml/min, Column: X-Bridge Prep C18 OBD, 30×50 mm, 5 μm particle size, Mobile phase: A=water (10 mM NH4CO3) B=MeCN, Gradient used 40% to 60% B in A, in 10 min. The fractions are combined and freeze dried to give the desired product (17 mg, 0.05 mmol, 25%). MS (ESI) (M+1) 383.3. 1H NMR (400 MHz, DMSO-D6) δ ppm 1.65 (s, 6H) 2.30 (s, 3H) 4.29 (d, J=5.47 Hz, 2H) 5.09 (s, 2H) 7.19-7.31 (m, 3H) 7.32-7.35 (m, 1H) 7.47 (dd, J=8.98, 3.91 Hz, 1H) 8.22 (s, 1H) 8.66-8.74 (m, 1H). is added concentrated under vacuo purified on HPLCMS in 10 min freeze dried

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

Procedure: 4-(1-cyano-1-methylethyl)benzonitrile (2.28 g, 13.41 mmol) is dissolved in dry THF and the solution cooled to 0° C. Red-Al (85% soln in toluene, 2.62 ml, 13.41 mmol of hydride) is added and the reaction stirred at 0° C. for 4 hours. The mixture is quenched with methanol and concentrated under vacuo. The residue is dissolved in CH2Cl2, washed with 2 portions of water, dried over magnesium sulfate, filtered and evaporated to dryness. The crude is purified by normal phase MPLC (SiO2, DCM to DCM/MeOH 3:1), giving 2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile (900 mg, 5.17 mmol, 39%) as a colorless oil. 1H NMR (400 MHz, DMSO-D6) δ ppm 1.68 (s, 6H) 4.00-4.05 (m, 2H) 7.55 (q, J=8.59 Hz, 4H) 8.35 (broad s, 2H). The mixture is quenched with methanol concentrated under vacuo The residue is dissolved in CH2Cl2 washed with 2 portions of water dried over magnesium sulfate filtered evaporated to dryness The crude is purified by normal phase MPLC (SiO2, DCM to DCM/MeOH 3:1)

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

Procedure: (6,7-difluoro-1H-benzimidazol-1-yl)acetic acid (42 mg, 0.2 mmol) prepared according to scheme 2 is dissolved in CH2Cl2 (2 mL). Triethylamine (83 μL, 0.6 mmol) is added, followed by pivaloyl chloride (25 μL, 0.2 mmol). After 30 minutes, 2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile (35 mg, 0.2 mmol) prepared according to scheme 18 is added dissolved in 1 mL of CH2Cl2. The mixture is stirred overnight at room temperature, concentrated under vacuo and purified on HPLCMS: Waters prep LCMS, 27 ml/min, Column: X-Bridge Prep C18 OBD, 30×50 mm, 5 μm particle size, Mobile phase: A=water (10 mM NH4CO3) B=MeCN, Gradient used 40% to 60% B in A, in 10 min. The fractions are combined and freeze dried to give the desired product (17 mg, 0.05 mmol, 25%). MS (ESI) (M+1) 383.3. 1H NMR (400 MHz, DMSO-D6) δ ppm 1.65 (s, 6H) 2.30 (s, 3H) 4.29 (d, J=5.47 Hz, 2H) 5.09 (s, 2H) 7.19-7.31 (m, 3H) 7.32-7.35 (m, 1H) 7.47 (dd, J=8.98, 3.91 Hz, 1H) 8.22 (s, 1H) 8.66-8.74 (m, 1H). is added concentrated under vacuo purified on HPLCMS in 10 min freeze dried

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

Procedure: 4-(1-cyano-1-methylethyl)benzonitrile (2.28 g, 13.41 mmol) is dissolved in dry THF and the solution cooled to 0° C. Red-A1 (85% soln in toluene, 2.62 ml, 13.41 mmol of hydride) is added and the reaction stirred at 0° C. for 4 hours. The mixture is quenched with methanol and concentrated under vacuo. The residue is dissolved in CH2Cl2, washed with 2 portions of water, dried over magnesium sulfate, filtered and evaporated to dryness. The crude is purified by normal phase MPLC (SiO2, DCM to DCM/MeOH 3:1), giving 2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile (900 mg, 5.17 mmol, 39%) as a colorless oil. 1H NMR (400 MHz, DMSO-D6) δ ppm 1.68 (s, 6H) 4.00-4.05 (m, 2H) 7.55 (q, J=8.59 Hz, 4H) 8.35 (broad s, 2H). The mixture is quenched with methanol concentrated under vacuo The residue is dissolved in CH2Cl2 washed with 2 portions of water dried over magnesium sulfate filtered evaporated to dryness The crude is purified by normal phase MPLC (SiO2, DCM to DCM/MeOH 3:1)

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

Procedure: (6,7-difluoro-1H-benzimidazol-1-yl)acetic acid (42 mg, 0.2 mmol) prepared according to scheme 2 is dissolved in CH2Cl2 (2 mL). Triethylamine (83 μL, 0.6 mmol) is added, followed by pivaloyl chloride (25 μL, 0.2 mmol). After 30 minutes, 2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile (35 mg, 0.2 mmol) prepared according to scheme 18 is added dissolved in 1 mL of CH2Cl2. The mixture is stirred overnight at room temperature, concentrated under vacuo and purified on HPLCMS: Waters prep LCMS, 27 ml/min, Column: X-Bridge Prep C18 OBD, 30×50 mm, 5 μm particle size, Mobile phase: A=water (10 mM NH4CO3) B=MeCN, Gradient used 40% to 60% B in A, in 10 min. The fractions are combined and freeze dried to give the desired product (17 mg, 0.05 mmol, 25%). MS (ESI) (M+1) 383.3. 1H NMR (400 MHz, DMSO-D6) δ ppm 1.65 (s, 6H) 2.30 (s, 3H) 4.29 (d, J=5.47 Hz, 2H) 5.09 (s, 2H) 7.19-7.31 (m, 3H) 7.32-7.35 (m, 1H) 7.47 (dd, J=8.98, 3.91 Hz, 1H) 8.22 (s, 1H) 8.66-8.74 (m, 1H). is added concentrated under vacuo purified on HPLCMS in 10 min freeze dried

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

Procedure: (6,7-difluoro-1H-benzimidazol-1-yl)acetic acid (42 mg, 0.2 mmol) prepared according to scheme 2 is dissolved in CH2Cl2 (2 mL). Triethylamine (83 μL, 0.6 mmol) is added, followed by pivaloyl chloride (25 μL, 0.2 mmol). After 30 minutes, 2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile (35 mg, 0.2 mmol) prepared according to scheme 18 is added dissolved in 1 mL of CH2Cl2. The mixture is stirred overnight at room temperature, concentrated under vacuo and purified on HPLCMS: Waters prep LCMS, 27 ml/min, Column: X-Bridge Prep C18 OBD, 30×50 mm, 5 μm particle size, Mobile phase: A=water (10 mM NH4CO3) B=MeCN, Gradient used 40% to 60% B in A, in 10 min. The fractions are combined and freeze dried to give the desired product (17 mg, 0.05 mmol, 25%). MS (ESI) (M+1) 383.3. 1H NMR (400 MHz, DMSO-D6) δ ppm 1.65 (s, 6H) 2.30 (s, 3H) 4.29 (d, J=5.47 Hz, 2H) 5.09 (s, 2H) 7.19-7.31 (m, 3H) 7.32-7.35 (m, 1H) 7.47 (dd, J=8.98, 3.91 Hz, 1H) 8.22 (s, 1H) 8.66-8.74 (m, 1H). is added concentrated under vacuo purified on HPLCMS in 10 min freeze dried

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

Procedure: 4-(1-cyano-1-methylethyl)benzonitrile (2.28 g, 13.41 mmol) is dissolved in dry THF and the solution cooled to 0° C. Red-Al (85% soln in toluene, 2.62 ml, 13.41 mmol of hydride) is added and the reaction stirred at 0° C. for 4 hours. The mixture is quenched with methanol and concentrated under vacuo. The residue is dissolved in CH2Cl2, washed with 2 portions of water, dried over magnesium sulfate, filtered and evaporated to dryness. The crude is purified by normal phase MPLC (SiO2, DCM to DCM/MeOH 3:1), giving 2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile (900 mg, 5.17 mmol, 39%) as a colorless oil. 1H NMR (400 MHz, DMSO-D6) δ ppm 1.68 (s, 6H) 4.00-4.05 (m, 2H) 7.55 (q, J=8.59 Hz, 4H) 8.35 (broad s, 2H). The mixture is quenched with methanol concentrated under vacuo The residue is dissolved in CH2Cl2 washed with 2 portions of water dried over magnesium sulfate filtered evaporated to dryness The crude is purified by normal phase MPLC (SiO2, DCM to DCM/MeOH 3:1)

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

Procedure: 4-(1-cyano-1-methylethyl)benzonitrile (2.28 g, 13.41 mmol) is dissolved in dry THF and the solution cooled to 0° C. Red-Al (85% soln in toluene, 2.62 ml, 13.41 mmol of hydride) is added and the reaction stirred at 0° C. for 4 hours. The mixture is quenched with methanol and concentrated under vacuo. The residue is dissolved in CH2Cl2, washed with 2 portions of water, dried over magnesium sulfate, filtered and evaporated to dryness. The crude is purified by normal phase MPLC (SiO2, DCM to DCM/MeOH 3:1), giving 2-[4-(aminomethyl)phenyl]-2-methylpropanenitrile (900 mg, 5.17 mmol, 39%) as a colorless oil. 1H NMR (400 MHz, DMSO-D6) δ ppm 1.68 (s, 6H) 4.00-4.05 (m, 2H) 7.55 (q, J=8.59 Hz, 4H) 8.35 (broad s, 2H). The mixture is quenched with methanol concentrated under vacuo The residue is dissolved in CH2Cl2 washed with 2 portions of water dried over magnesium sulfate filtered evaporated to dryness The crude is purified by normal phase MPLC (SiO2, DCM to DCM/MeOH 3:1)

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