3-aminocyclobutan-1-ol

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

Procedure: To a suspension of 459 mg (11.5 mmol) of sodium hydride (60%) in 16 mL of dimethyl acetamide was added a solution of 333 mg (3.82 mmol) of 3-amino-cyclobutanol (50) in 8 ml of dimethyl acetamide. After stirring for 60 min at room temperature a solution of 1.00 g (3.48 mmol) of 1-benzyloxy-7-chloro-6-fluoro-isoquinoline (11) in 16 ml of dimethyl acetamide was added and stirring was continued first at room temperature, then for 2 h at 50° C. until the reaction went to completion. The reaction was quenched by addition of water and the reaction mixture was extracted three times with a mixture of dichloromethane and 2-propanol (3:1). The combined organic layers were evaporated, water was added and the crude product was subjected to lyophilization to remove remainders of dimethyl acetamide. The obtained crude product was purified by silica gel chromatography to yield 377 mg of the title compound (51) as a mixture of diastereoisomers. Rt=0.85 min (Method H). Detected mass: 355.1 (M+H+). was added was continued first at room temperature The reaction was quenched by addition of water the reaction mixture was extracted three times with a mixture of dichloromethane and 2-propanol (3:1) The combined organic layers were evaporated water was added to remove remainders of dimethyl acetamide The obtained crude product was purified by silica gel chromatography

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

Procedure: Prepared according to Example 127, using DIPEA (141 μl, 0.803 mmol), 2-(3-fluoro-2-methylquinoxalin-5-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4 (5H)-one (Example 126; 40 mg, 0.135 mmol), 3-aminocyclobutanol (35.3 mg, 0.405 mmol, Sigma Aldrich; mixture of cis- and trans-isomers), and DMSO (1.4 mL) stirring at 80° C. for 2 h. Purification by high throughput parallel purification (Rilas Technologies, Woburn, Mass.) provided 2-(3-((3-hydroxycyclobutyl)amino)-2-methyl-5-quinoxalinyl)-1,5,6,7-tetrahydro-4H-pyrrolo[3,2-c]pyridin-4-one (mixture of cis- and trans-isomers): 1H NMR (DMSO-d6) δ: 12.31-12.44 (m, 1H), 7.86-7.95 (m, 1H), 7.51-7.61 (m, 1H), 7.26-7.40 (m, 2H), 7.04-7.11 (m, 1H), 6.91-7.02 (m, 1H), 5.12-5.26 (m, 1H), 4.37-4.53 (m, 1H), 3.86-4.07 (m, 1H), 3.41-3.48 (m, 1H), 2.88-3.01 (m, 2H), 2.75-2.85 (m, 1H), 2.55-2.59 (m, 4H), 2.26-2.48 (m, 2H), 1.94-2.09 (m, 1H). m/z (ESI, +ve) 364.1 (M+H)+. Prepared Purification by high throughput parallel purification (Rilas Technologies, Woburn, Mass.)

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

Procedure: Prepared according to Example 127, using DIPEA (141 μl, 0.803 mmol), 2-(3-fluoro-2-methylquinoxalin-5-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4 (5H)-one (Example 126; 40 mg, 0.135 mmol), 3-aminocyclobutanol (35.3 mg, 0.405 mmol, Sigma Aldrich; mixture of cis- and trans-isomers), and DMSO (1.4 mL) stirring at 80° C. for 2 h. Purification by high throughput parallel purification (Rilas Technologies, Woburn, Mass.) provided 2-(3-((3-hydroxycyclobutyl)amino)-2-methyl-5-quinoxalinyl)-1,5,6,7-tetrahydro-4H-pyrrolo[3,2-c]pyridin-4-one (mixture of cis- and trans-isomers): 1H NMR (DMSO-d6) δ: 12.31-12.44 (m, 1H), 7.86-7.95 (m, 1H), 7.51-7.61 (m, 1H), 7.26-7.40 (m, 2H), 7.04-7.11 (m, 1H), 6.91-7.02 (m, 1H), 5.12-5.26 (m, 1H), 4.37-4.53 (m, 1H), 3.86-4.07 (m, 1H), 3.41-3.48 (m, 1H), 2.88-3.01 (m, 2H), 2.75-2.85 (m, 1H), 2.55-2.59 (m, 4H), 2.26-2.48 (m, 2H), 1.94-2.09 (m, 1H). m/z (ESI, +ve) 364.1 (M+H)+. Prepared Purification by high throughput parallel purification (Rilas Technologies, Woburn, Mass.)

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

Procedure: To a suspension of 459 mg (11.5 mmol) of sodium hydride (60%) in 16 mL of dimethyl acetamide was added a solution of 333 mg (3.82 mmol) of 3-amino-cyclobutanol (50) in 8 ml of dimethyl acetamide. After stirring for 60 min at room temperature a solution of 1.00 g (3.48 mmol) of 1-benzyloxy-7-chloro-6-fluoro-isoquinoline (11) in 16 ml of dimethyl acetamide was added and stirring was continued first at room temperature, then for 2 h at 50° C. until the reaction went to completion. The reaction was quenched by addition of water and the reaction mixture was extracted three times with a mixture of dichloromethane and 2-propanol (3:1). The combined organic layers were evaporated, water was added and the crude product was subjected to lyophilization to remove remainders of dimethyl acetamide. The obtained crude product was purified by silica gel chromatography to yield 377 mg of the title compound (51) as a mixture of diastereoisomers. Rt=0.85 min (Method H). Detected mass: 355.1 (M+H+). was added was continued first at room temperature The reaction was quenched by addition of water the reaction mixture was extracted three times with a mixture of dichloromethane and 2-propanol (3:1) The combined organic layers were evaporated water was added to remove remainders of dimethyl acetamide The obtained crude product was purified by silica gel chromatography

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

Procedure: To a suspension of 459 mg (11.5 mmol) of sodium hydride (60%) in 16 mL of dimethyl acetamide was added a solution of 333 mg (3.82 mmol) of 3-amino-cyclobutanol (50) in 8 ml of dimethyl acetamide. After stirring for 60 min at room temperature a solution of 1.00 g (3.48 mmol) of 1-benzyloxy-7-chloro-6-fluoro-isoquinoline (11) in 16 ml of dimethyl acetamide was added and stirring was continued first at room temperature, then for 2 h at 50° C. until the reaction went to completion. The reaction was quenched by addition of water and the reaction mixture was extracted three times with a mixture of dichloromethane and 2-propanol (3:1). The combined organic layers were evaporated, water was added and the crude product was subjected to lyophilization to remove remainders of dimethyl acetamide. The obtained crude product was purified by silica gel chromatography to yield 377 mg of the title compound (51) as a mixture of diastereoisomers. Rt=0.85 min (Method H). Detected mass: 355.1 (M+H+). was added was continued first at room temperature The reaction was quenched by addition of water the reaction mixture was extracted three times with a mixture of dichloromethane and 2-propanol (3:1) The combined organic layers were evaporated water was added to remove remainders of dimethyl acetamide The obtained crude product was purified by silica gel chromatography

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

Procedure: Prepared according to Example 127, using DIPEA (141 μl, 0.803 mmol), 2-(3-fluoro-2-methylquinoxalin-5-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4 (5H)-one (Example 126; 40 mg, 0.135 mmol), 3-aminocyclobutanol (35.3 mg, 0.405 mmol, Sigma Aldrich; mixture of cis- and trans-isomers), and DMSO (1.4 mL) stirring at 80° C. for 2 h. Purification by high throughput parallel purification (Rilas Technologies, Woburn, Mass.) provided 2-(3-((3-hydroxycyclobutyl)amino)-2-methyl-5-quinoxalinyl)-1,5,6,7-tetrahydro-4H-pyrrolo[3,2-c]pyridin-4-one (mixture of cis- and trans-isomers): 1H NMR (DMSO-d6) δ: 12.31-12.44 (m, 1H), 7.86-7.95 (m, 1H), 7.51-7.61 (m, 1H), 7.26-7.40 (m, 2H), 7.04-7.11 (m, 1H), 6.91-7.02 (m, 1H), 5.12-5.26 (m, 1H), 4.37-4.53 (m, 1H), 3.86-4.07 (m, 1H), 3.41-3.48 (m, 1H), 2.88-3.01 (m, 2H), 2.75-2.85 (m, 1H), 2.55-2.59 (m, 4H), 2.26-2.48 (m, 2H), 1.94-2.09 (m, 1H). m/z (ESI, +ve) 364.1 (M+H)+. Prepared Purification by high throughput parallel purification (Rilas Technologies, Woburn, Mass.)

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

Procedure: To a suspension of 459 mg (11.5 mmol) of sodium hydride (60%) in 16 mL of dimethyl acetamide was added a solution of 333 mg (3.82 mmol) of 3-amino-cyclobutanol (50) in 8 ml of dimethyl acetamide. After stirring for 60 min at room temperature a solution of 1.00 g (3.48 mmol) of 1-benzyloxy-7-chloro-6-fluoro-isoquinoline (11) in 16 ml of dimethyl acetamide was added and stirring was continued first at room temperature, then for 2 h at 50° C. until the reaction went to completion. The reaction was quenched by addition of water and the reaction mixture was extracted three times with a mixture of dichloromethane and 2-propanol (3:1). The combined organic layers were evaporated, water was added and the crude product was subjected to lyophilization to remove remainders of dimethyl acetamide. The obtained crude product was purified by silica gel chromatography to yield 377 mg of the title compound (51) as a mixture of diastereoisomers. Rt=0.85 min (Method H). Detected mass: 355.1 (M+H+). was added was continued first at room temperature The reaction was quenched by addition of water the reaction mixture was extracted three times with a mixture of dichloromethane and 2-propanol (3:1) The combined organic layers were evaporated water was added to remove remainders of dimethyl acetamide The obtained crude product was purified by silica gel chromatography