2-chloro-1-fluoro-4-isocyanatobenzene

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: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: To a solution of 4-(3-dimethylamino-propoxy)-3-(2-methyl-2H-pyrazol-3-yl)-phenylamine (57.3 mg, 0.209 mmol) in CH2Cl2 (2 mL) was added 3-chloro-4-fluorophenyl isocyanate (0.30 μL, 0.241 mmol) and stirred for two hours. The resulting material was purified by solid phase extraction (SCX, 1 gram cartridge), eluting with methanol (30 mL) followed by 2M NH3 in methanol (30 mL). The NH3 containing fractions were dried in vacuo to afford Compound 135 as a colorless solid (66.2 mg, 71%). LCMS m/z (%)=446 (M+H35Cl, 100), 448 (M+H37Cl, 35), 1H NMR (400 MHz, DMSO-d6) δ: 8.87 (bs, 1H), 8.69 (bs, 1H), 7.81-7.77 (m, 1H), 7.47-7.42 (m, 2H), 7.37 (d, J=2.71 Hz, 1H), 7.35-7.26 (m, 2H), 7.09 (d, J=8.98 Hz, 1H), 6.24 (d, J=1.83 Hz, 1H), 3.98 (t, J=6.36 Hz, 2H), 3.65 (s, 3H), 2.19 (t, J=7.04 Hz, 2H), 2.07 (s, 6H), 1.77-1.69 (m, 2H). The resulting material was purified by solid phase extraction (SCX, 1 gram cartridge) eluting with methanol (30 mL) The NH3 containing fractions were dried in vacuo

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

Procedure: To a solution of 3-(4-chloro-2-isopropyl-2H-pyrazol-3-yl)-4-methoxy-phenylamine (0.1 g, 0.433 mmol) in CH2Cl2, was added 3-chloro-4-fluoro-phenyl isocyanate (0.082 g, 0.476 mmol) and stirred overnight. The resulting precipitate was filtered and washed with methylene chloride/hexane (1:1), and dried in vacuo to yield Compound 56 as a colorless solid (0.052 g, 28%). LCMS m/z (%)=439 M+H+ (37Cl, 29), 437 M+H+ (35Cl, 46), 1H NMR (400 MHz, acetone-d6) δ: 8.764 (bs, 1H), 8.673 (bs, 1H), 8.31-8.28 (m, 1H), 8.110 (d, J=2.72 Hz, 1H), 8.088 (d, J=2.71 Hz, 1H), 7.974 (s, 1H), 7.878 (d, J=2.68 Hz, 1H), 7.828-7.788 (m, 1H), 7.68-7.64 (m, 1H), 7.635-7.563 (m, 1H), 4.668 (m, 1H), 4.246 (s, 3H), 1.874 (d, J=6.61 Hz, 3H), 1.713 (d, J=6.61 Hz, 3H). The resulting precipitate was filtered washed with methylene chloride/hexane (1:1) dried in vacuo

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

Procedure: To a solution of 3-(4-bromo-2-isopropyl-2H-pyrazol-3-yl)-4-methoxy-phenylamine (0.08 g, 0.258 mmol) in CH2Cl2, was added 3-chloro-4-fluoro phenyl isocyanate (0.045 g, 0.263 mmol) and stirred overnight. The resulting precipitate was filtered and washed with methylene chloride/hexane (1:1), and dried in vacuo to yield Compound 52 as a colorless solid (0.067 g, 54%). LCMS m/z (%)=485 M+H+ (81Br 37Cl, 30), 483 M+H+ (81Br 35Cl, 100), 481 M+H+ (79Br 35Cl, 72), 1H NMR (400 MHz, CDCl3) δ: 7.7 (s, 1H), 7.4 (d, J=1.8 Hz, 1H), 7.3 (d, J=1.8 Hz, 1H), 7.25 (s, 1H), 7.1-6.8 (m, 3H), 4.3 (m, 1H), 3.8 (s, 3H), 1.5 (d, J=6.61 Hz, 3H), 1.3 (d, J=6.61 Hz, 3H). The resulting precipitate was filtered washed with methylene chloride/hexane (1:1) dried in vacuo

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

Procedure: To a solution of 3-(2-isopropyl-2H-pyrazol-3-yl)-4-methoxy-phenylamine (0.1 g, 0.433 mmol) in CH2Cl2, was added 3-chloro-4-fluoro phenyl isocyanate (0.075 g, 0.476 mmol) and stirred overnight. The resulting precipitate was filtered and washed with methylene chloride/hexane (1:1), and dried in vacuo to yield Compound 47 as a colorless solid (0.090 g, 52%). LCMS m/z (%)=405 M+H+ (37Cl, 23) 403 M+H+ (35Cl, 60), 1H NMR (400 MHz, acetone-d6) δ: 8.3 (bs, 1H), 8.1 (bs, 1H), 7.82-7.796 (dd, J1=6.75 Hz, J2=2.58 Hz, 1H), 7.536 (d, J=2.67 Hz, 2H), 7.514 (d, J=2.67 Hz, 2H), 7.43 (d, J=1.57 Hz, 1H), 7.368 (d, J=2.65 Hz, 1H), 7.299 (d, J=1.23 Hz, 1H), 7.136 (t, 1H), 6.079 (d, J=1.69 Hz, 1H), 4.224 (m, 1H), 3.73 (s, 3H), 1.308 (d, J=6.61 Hz, 6H). The resulting precipitate was filtered washed with methylene chloride/hexane (1:1) dried in vacuo

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

Procedure: To an ice-cooled solution of (1R)-1,8,8-trimethylbicyclo[3.2.1]octane-2,4-dione (0.36 g, 2.0 mmole), triethylamine (0.20 g, 2.0 mmole) and 4-(dimethylamino)pyridine (0.24 g, 2.0 mmole) in dry dichloromethane (25 mL) was added a solution of 3-chloro-4-fluorophenyl isocyanate (0.34 g, 2.0 mmole) in dry dichloromethane (5 mL). The resulting reaction mixture was allowed to stir overnight under a nitrogen atmosphere, during which time it came up to room temperature. It was then stirred at 30° C. for seven hours. The resulting mixture was treated with 2N aqueous HCl (30 mL) and the layers were separated. The aqueous layer was extracted with two additional portions of dichloromethane (50 mL). The combined organic layers were dried over anhydrous sodium sulfate and concentrated on a rotary evaporator. The desired product was isolated by chromatography on silica gel (10% ethyl acetate/hexane) and recrystallized from 95% ethanol to yield the title compound as a light orange solid (0.39 g, 56% yield), mp=89–91° C.; MS (−) ESI m/z=352 (M−H)−; [α]D25=+24.0° (c=1, EtOH). The resulting reaction mixture came up to room temperature It was then stirred at 30° C. for seven hours the layers were separated The aqueous layer was extracted with two additional portions of dichloromethane (50 mL) The combined organic layers were dried over anhydrous sodium sulfate concentrated on a rotary evaporator

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

Procedure: To an ice-cooled solution of (1S)1,8,8-trimethylbicyclo[3.2.1]octane-2,4-dione (0.18 g, 1.0 mmole), triethylamine (0.10 g, 1.0 mmole) and 4-(dimethylamino)pyridine (0.12 g, 1.0 mmole) in dry dichloromethane (25 mL) was added a solution of 3-chloro-4-fluorophenyl isocyanate (0.17 g, 1.0 mmole) in dry dichloromethane (5 mL). The resulting reaction mixture was allowed to stir overnight under a nitrogen atmosphere, during which time it came up to room temperature. It was then stirred at 30° C. for seven hours. The resulting mixture was treated with 2N aqueous HCl (30 mL) and the layers were separated. The aqueous layer was extracted with two additional portions of dichloromethane (50 mL). The combined organic layers were dried over anhydrous sodium sulfate and concentrated on a rotary evaporator. The desired product was isolated by chromatography on silica gel (10% ethyl acetate/hexane) and recrystallized from 95% ethanol to yield the title compound as a light orange solid (0.16 g, 47% yield), mp=87–89° C.; MS (−) ESI m/z=352 (M−H)−; [α]D25=−23.1° (c=1, EtOH). The resulting reaction mixture came up to room temperature It was then stirred at 30° C. for seven hours the layers were separated The aqueous layer was extracted with two additional portions of dichloromethane (50 mL) The combined organic layers were dried over anhydrous sodium sulfate concentrated on a rotary evaporator