(4-chloro-2-fluorophenyl)boronic acid

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:

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (4-Chloro-2-fluorophenyl)boronic acid (4.29 g, 24.6 mmol), Intermediate 1-1 (6.63 g, 23.4 mmol) and Na2CO3 (7.45 g, 70.3 mmol) were degassed for 10 minutes with N2, then PdCl2(dppf)CH2Cl2 (0.96 g, 1.17 mmol) was added. The reaction mixture was heated at 90° C. for 2 h. The reaction mixture was concentrated in vacuo then CH2Cl2 and 1 M HCl were added. The aqueous phase was washed with CH2Cl2, then basified to pH 14 with a 6 M NaOH solution. The aqueous phase was then extracted with CH2Cl2 (3×). The combined organic phases were dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford 6-(4-chloro-2-fluorophenyl)-N-methyl-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyridazin-3-amine as a brown solid (8.40 g, 95%). [M+H]: 377.2; 1H NMR (400 MHz, MeOD) δ 7.87 (t, J=8.5 Hz, 1H), 7.76 (dd, J=9.5, 2.4 Hz, 1H), 7.32-7.40 (m, 2H), 7.17 (d, J=9.5 Hz, 1H), 5.13-5.36 (m, 1H), 1.69 (dd, J=12.5, 3.5 Hz, 2H), 1.57 (t, J=12.5 Hz, 2H), 1.38 (s, 6H), 1.23 (s, 6H). The reaction mixture was concentrated in vacuo CH2Cl2 and 1 M HCl were added The aqueous phase was washed with CH2Cl2 The aqueous phase was then extracted with CH2Cl2 (3×) The combined organic phases were dried over anhydrous Na2SO4 filtered concentrated under reduced pressure

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (4-Chloro-2-fluorophenyl)boronic acid (4.29 g, 24.6 mmol), Intermediate 1-1 (6.63 g, 23.4 mmol) and Na2CO3 (7.45 g, 70.3 mmol) were degassed for 10 minutes with N2, then PdCl2(dppf)CH2Cl2 (0.96 g, 1.17 mmol) was added. The reaction mixture was heated at 90° C. for 2 h. The reaction mixture was concentrated in vacuo then CH2Cl2 and 1 M HCl were added. The aqueous phase was washed with CH2Cl2, then basified to pH 14 with a 6 M NaOH solution. The aqueous phase was then extracted with CH2Cl2 (3×). The combined organic phases were dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford 6-(4-chloro-2-fluorophenyl)-N-methyl-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyridazin-3-amine as a brown solid (8.40 g, 95%). [M+H]: 377.2; 1H NMR (400 MHz, MeOD) δ 7.87 (t, J=8.5 Hz, 1H), 7.76 (dd, J=9.5, 2.4 Hz, 1H), 7.32-7.40 (m, 2H), 7.17 (d, J=9.5 Hz, 1H), 5.13-5.36 (m, 1H), 1.69 (dd, J=12.5, 3.5 Hz, 2H), 1.57 (t, J=12.5 Hz, 2H), 1.38 (s, 6H), 1.23 (s, 6H). The reaction mixture was concentrated in vacuo CH2Cl2 and 1 M HCl were added The aqueous phase was washed with CH2Cl2 The aqueous phase was then extracted with CH2Cl2 (3×) The combined organic phases were dried over anhydrous Na2SO4 filtered concentrated under reduced pressure

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

Procedure: The title compound was synthesized in analogy to Examples BI to BJ using 5-bromo-6-(2,2,2-trifluoroethoxy)-3-pyridinecarboxylic acid methyl ester (CAN 1211589-51-3) and B-(4-chloro-2-fluorophenyl)-boronic acid, (CAN 160591-91-3) as starting materials; LC-MS (UV peak area/ESI) 98.8%, 348.0061 (M−H)−.

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

Procedure: By a similar operation as in Reference Example 79 and using tert-butyl{[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate (300 mg), (4-chloro-2-fluorophenyl)boronic acid (243 mg), tetrakis(triphenylphosphine)palladium (40 mg) and sodium carbonate (220 mg), the title compound was obtained as a colorless oil (yield 127 mg, 54%).

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

Procedure: By a similar operation as in Reference Example 79 and using tert-butyl{[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate (300 mg), (4-chloro-2-fluorophenyl)boronic acid (243 mg), tetrakis(triphenylphosphine)palladium (40 mg) and sodium carbonate (220 mg), the title compound was obtained as a colorless oil (yield 127 mg, 54%).

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

Procedure: The title compound, white solid (83 mg, 94%), MS (ISP) m/z=354.4 [(M+H)+], mp 217.5° C., was prepared in accordance with the general method of example 1 from 7-bromo-1-oxo-2,3,4,5-tetrahydro-[1,4]diazepino[1,2-a]indole-9-carbonitrile (intermediate 20) (76.0 mg, 0.25 mmol) and commercially available 4-chloro-2-fluoro-phenylboronic acid (56.7 mg, 0.325 mmol).

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

Procedure: The title compound, white solid (83 mg, 94%), MS (ISP) m/z=354.4 [(M+H)+], mp 217.5° C., was prepared in accordance with the general method of example 1 from 7-bromo-1-oxo-2,3,4,5-tetrahydro-[1,4]diazepino[1,2-a]indole-9-carbonitrile (intermediate 20) (76.0 mg, 0.25 mmol) and commercially available 4-chloro-2-fluoro-phenylboronic acid (56.7 mg, 0.325 mmol).

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

Procedure: The title compound, white solid (69 mg, 75%), MS (ISP) m/z=384.5 [(M+H)+], mp 259° C., was prepared in accordance with the general method of example 1 from 7-bromo-11-methyl-1-oxo-2,3,4,5-tetrahydro-[1,4]diazepino[1,2-a]indole-9-carbonitrile (intermediate 17) (79.5 mg, 0.25 mmol) and commercially available 4-chloro-2-fluoro-phenylboronic acid (56.7 mg, 0.325 mmol).