(4-ethylsulfonylphenyl)methanamine

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

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

Procedure: Use a method similar to the General Procedure 5-2, using 7-chloro-3-(2,2,2-trifluoroacetyl)-6-trifluoromethanesulfonyloxy-2,3,4,5-tetrahydro-1H-benzo[d]azepine (0.2 g, 0.35 mmol) and 4-ethanesulfonyl-benzylamine (0.2 g, 1.06 mmol) to give 7-chloro-6-(4-ethanesulfonyl-benzylamino)-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine as a colorless oil.

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

Procedure: Combine 4-ethanesulfonyl-benzonitrile (0.7 g, 3.5 mmol), Raney® 3201 nickel (slurry in water, 0.1 g), 2N ammonia in methanol (20 mL) and hydrogenate at 50 psi for 17 h. Filter the reaction mixture through a pad of Celite® and concentrate in vacuo. Purify by SCX chromatography to obtain the title compound as a yellow oil (0.3 g, 43%). Filter the reaction mixture through a pad of Celite® concentrate in vacuo Purify by SCX chromatography

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

Procedure: [Step 3] To a mixture of 4-ethanesulfonylbenzonitrile (500 mg) in methanol (6 ml) and tetrahydrofuran (2 ml) was added 28% aqueous ammonia (1 ml) and then Raney nickel (500 mg) was added. Under a hydrogen pressure (0.5 Mpa), the mixture was stirred at room temperature for 2 hrs., and undesired substances were removed by filtration. The filtrate was concentrated under reduced pressure to give 4-ethanesulfonylbenzylamine (408 mg, 82%). , and undesired substances were removed by filtration The filtrate was concentrated under reduced pressure

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

Procedure: [Step 3] To a mixture of 4-ethanesulfonylbenzonitrile (500 mg) in methanol (6 ml) and tetrahydrofuran (2 ml) was added 28% aqueous ammonia (1 ml) and then Raney nickel (500 mg) was added. Under a hydrogen pressure (0.5 Mpa), the mixture was stirred at room temperature for 2 hrs., and undesired substances were removed by filtration. The filtrate was concentrated under reduced pressure to give 4-ethanesulfonylbenzylamine (408 mg, 82%). , and undesired substances were removed by filtration The filtrate was concentrated under reduced pressure

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

Procedure: Use a method similar to the General Procedure 5-2, using 7-chloro-3-(2,2,2-trifluoroacetyl)-6-trifluoromethanesulfonyloxy-2,3,4,5-tetrahydro-1H-benzo[d]azepine (0.2 g, 0.35 mmol) and 4-ethanesulfonyl-benzylamine (0.2 g, 1.06 mmol) to give 7-chloro-6-(4-ethanesulfonyl-benzylamino)-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine as a colorless oil.

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

Procedure: Combine 4-ethanesulfonyl-benzonitrile (0.7 g, 3.5 mmol), Raney® 3201 nickel (slurry in water, 0.1 g), 2N ammonia in methanol (20 mL) and hydrogenate at 50 psi for 17 h. Filter the reaction mixture through a pad of Celite® and concentrate in vacuo. Purify by SCX chromatography to obtain the title compound as a yellow oil (0.3 g, 43%). Filter the reaction mixture through a pad of Celite® concentrate in vacuo Purify by SCX chromatography

Conditions: temp:160.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of tert-butyl3-chloro-7-(tetrahydrofuran-3-yl)-5,7-dihydro-6H-pyrrolo[3,4-b]pyridine-6-carboxylate (60 mg, 0.19 mmol) in a MW vial in anhydrous dioxane (0.5 mL) was added molybdenum hexacarbonyl (6 mg, 0.02 mmol), (4-(ethylsulfonyl)phenyl)methanamine (56 mg, 0.28 mmol) and 1,8-diazabicyclo[5.4.0]undec-7-ene (90 mg, 0.57 mmol). The mixture was degassed with N2 for 15 min, at which point tri-tert-butylphosphonium tetrafluoroborate (58 mg, 0.19 mmol) and trans-bis(acetate)bis[o-(di-o-tolylphosphino)benzyl]dipalladium (II) (10 mg, 0.01 mmol) were added. The vial was sealed and heated in the MW at 160° C. for 20 min. The reaction mixture was filtered, then the filtrate was concentrated under reduced pressure and purified by preparative TLC (eluting with 12% EtOAc in petroleum ether) to afford tert-butyl3-((4-(ethylsulfonyl)benzyl)carbamoyl)-7-(tetrahydrofuran-3-yl)-5,7-dihydro-6H-pyrrolo[3,4-b]pyridine-6-carboxylate (25 mg, 26%) as a colorless oil. LCMS: tR=0.761 min in 5-95AB—1.5 min chromatography (MK RP18e 25-2 mm), MS (ESI) m/z 516.2 [M+H]+. 1H NMR (CD3OD, 400 MHz): δ 8.96 (s, 1H), 8.20 (d, J=10.0 Hz, 1H), 8.15-8.00 (m, 1H), 7.91 (d, J=8.4 Hz, 2H), 7.65 (d, J=8.0 Hz, 2H), 5.19 (s, 1H), 5.00-4.90 (m, 2H), 4.75-4.60 (m, 3H), 4.00-3.65 (m, 5H), 3.25 (q, J=7.2 Hz, 2H), 3.05-2.95 (m, 1H), 2.15-1.75 (m, 2H), 1.56 (s, 9H), 1.23 (t, J=7.2 Hz, 3H). were added The vial was sealed The reaction mixture was filtered the filtrate was concentrated under reduced pressure purified by preparative TLC (eluting with 12% EtOAc in petroleum ether)

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

Procedure: To a solution of (S)-6-(tert-butoxycarbonyl)-7-isopropyl-6,7-dihydro-5H-pyrrolo[3,4-b]pyridine-3-carboxylic acid (83.3 mg, 281 μmol) and (4-(ethylsulfonyl)phenyl)methanamine (67.1 mg, 337 μmol) in DMF (2 mL) at rt was added HATU (160 mg, 421 μmol) and diisopropylethylamine (97.8 μL, 561 μmol). The mixture was stirred at rt for 15 h, at which point it was quenched with saturated aqueous ammonium chloride solution (15 mL). EtOAc (25 mL) was added, then the phases were separated. The organic layer was washed with brine (15 mL), dried over anhydrous MgSO4, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography (eluting with 50% EtOAc in hexanes, gradient to 100%) to afford 98.0 mg tert-butyl(S)-3-((4-(ethylsulfonyl)benzyl)carbamoyl)-7-isopropyl-5,7-dihydro-6H-pyrrolo[3,4-b]pyridine-6-carboxylate, (15), (77%). LC-MS tR=0.92 min in 1 min chromatography, MS (ESI) m/z 488.5 [M+H]+. 1H NMR (CD3OD, 400 MHz, mixture of rotamers): δ 8.94 (d, J=2.0 Hz, 1H), 8.16 (d, J=12.0 Hz, 1H), 7.89 (dd, J=2.0 Hz, 8.4 Hz, 2H), 7.64 (d, J=8.8 Hz, 2H), 4.96 (m, 1H), 4.83 (m, 1H), 4.70 (s, 2H), 4.59 (m, 1H), 3.20 (q, J=7.2 Hz, 2H), 2.56-2.42 (m, 1H), 1.48 (s, 9H), 1.20 (t, J=7.2 Hz, 3H), 1.06 (d, J=7.2 Hz, 1.5H), 1.02 (d, J=6.8 Hz, 1.5H), 0.80 (d, J=6.8 Hz, 1.5H), 0.74 (d, J=6.8 Hz, 1.5H). was quenched with saturated aqueous ammonium chloride solution (15 mL) EtOAc (25 mL) was added the phases were separated The organic layer was washed with brine (15 mL) dried over anhydrous MgSO4 filtered concentrated under reduced pressure The residue was purified by silica gel chromatography (eluting with 50% EtOAc in hexanes, gradient to 100%)

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

Procedure: To a solution of 1-(bromomethyl)-4-(ethylsulfonyl)benzene (6.62 g, 25.2 mmol) in MeOH (30 mL) was added 28% aqueous ammonium hydroxide solution (30 mL). The mixture was stirred at rt overnight. The mixture was then concentrated under reduced pressure. The residue was purified by basic preparative HPLC separation to afford (4-(ethylsulfonyl)phenyl)methanamine (1.5 g, 30%) as a yellow solid. LC-MS tR=1.747 min in 0-30CD—3 min chromatography (Durashell C18, 2.1*30 mm, 3 um), MS (ESI) m/z 200.0 [M+H]+ and 399.0 [2M+H]+. 1H NMR (CDCl3, 400 MHz): δ 7.85 (d, J=8.0 Hz, 2H), 7.53 (d, J=8.0 Hz, 2H), 3.98 (s, 2H), 3.10 (q, J=7.6 Hz, 2H), 1.26 (t, J=7.6 Hz, 3H). Preparative Basic HPLC Method mobile phase A: water with 0.05% NH3H2O solution; mobile phase B: MeCN; flow rate: 30 mL/min; detection: UV 220 nm/254 nm; column: Synergi 200 mm×25 mm×5 μm; column temperature: 30° C. The mixture was then concentrated under reduced pressure The residue was purified by basic preparative HPLC separation

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

Procedure: Use a method similar to the General Procedure 5-2, using 7-chloro-3-(2,2,2-trifluoroacetyl)-6-trifluoromethanesulfonyloxy-2,3,4,5-tetrahydro-1H-benzo[d]azepine (0.2 g, 0.35 mmol) and 4-ethanesulfonyl-benzylamine (0.2 g, 1.06 mmol) to give 7-chloro-6-(4-ethanesulfonyl-benzylamino)-3-(2,2,2-trifluoroacetyl)-2,3,4,5-tetrahydro-1H-benzo[d]azepine as a colorless oil.

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

Procedure: Combine 4-ethanesulfonyl-benzonitrile (0.7 g, 3.5 mmol), Raney® 3201 nickel (slurry in water, 0.1 g), 2N ammonia in methanol (20 mL) and hydrogenate at 50 psi for 17 h. Filter the reaction mixture through a pad of Celite® and concentrate in vacuo. Purify by SCX chromatography to obtain the title compound as a yellow oil (0.3 g, 43%). Filter the reaction mixture through a pad of Celite® concentrate in vacuo Purify by SCX chromatography