2-3,5-二氟苯乙胺

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 0.67 ml of 4-tert-butylbenzaldehyde (3.87 mmol) and 500 mg 2-(3,5-difluoro-phenyl)-ethylamine (2.58 mmol) were dissolved in 7.5 ml methanol at rt, and after stirring for 30 min at rt, were refluxed for 4 h. After cooling down to rt, 147 mg (3.87 mmol) sodium borohydride were added and after stirring for 5 min at rt, the reaction mixture was then refluxed for 2.5 h. After cooling down to rt, the reaction mixture was treated with 10 drops 1 N HCl and concentrated in vacuo. The residue was diluted with water/EtOAc. After separation of the organic phase, the aqueous phase was extracted with EtOAc and the combined organic phases were washed with brine, dried with magnesium sulfate, filtered off and concentrated in vacuo. The residue was purified by column chromatography (40 g silica gel; EtOAc/heptane 1:2) to give 653 mg light yellow oil (83%). MS (ISP) 304.2 (M+H)+. were refluxed for 4 h After cooling down to rt after stirring for 5 min at rt the reaction mixture was then refluxed for 2.5 h After cooling down to rt concentrated in vacuo The residue was diluted with water/EtOAc After separation of the organic phase the aqueous phase was extracted with EtOAc the combined organic phases were washed with brine dried with magnesium sulfate filtered off concentrated in vacuo The residue was purified by column chromatography (40 g silica gel; EtOAc/heptane 1:2)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Intermediate 166 from above was coupled with 2-(3,5-difluorophenyl)ethanamine following procedure F. The product was deprotected by procedure G2. LC-MS showed the product had the expected M+H+ of 442. 1H NMR (Varian 300 MHz, MeOD-d6, shifts relative to the solvent peak at 3.31 ppm) δ 8.8 (d, 1H) 8.4 (d, 1H) 8.3 (d, 1H) 7.7 (d, 1H), 7.5 (t, 1H), 7.0 (d, 2H) 6.7 (d, 1H), 3.8-3.7 (m, 3H) 3.6-3.5 (m, 8H), 3.0 (t, 2H), 1.7 (d, 3H).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Intermediate 158 from above was coupled with 2-(3,5-difluorophenyl)ethanamine following procedure F. The product was deprotected by procedure G2. LC-MS showed the product had the expected M+H+ of 438. 1H NMR (Varian 300 MHz, MeOD-d6, shifts relative to the solvent peak at 3.31 ppm) δ 8.4 (d, 1H) 8.0 (d, 1H) 7.7 (d, 1H) 7.5 (d, 1H), 7.4 (d, 1H), 6.9 (d, 2H) 6.7 (t, 1H), 3.9-3.8 (m, 3H) 3.7-3.6 (m, 6H) 3.5-3.4 (m, 2H) 3.0 (t, 2H), 2.5 (s, 3H), 1.7 (d, 3H).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Intermediate 142 was coupled with 2-(3,5-difluoro-phenyl)-ethylamine following procedure F. The resulting product was deprotected following procedure G2. LC-MS showed the product had the expected M+H+ of 422. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.3 ppm) δ 8.78 (s, 1H) 8.38 (d, 2H) 8.00 (d, 1H) 7.77 (t, 1H) 7.68 (d, 1H) 7.00 (d, 2H) 6.75 (t, 1H) 4.84 (d, 1H) 4.65 (s, 2H) 4.60 (d, 1H) 4.24 (d, 1H) 4.10 (d, 1H) 3.89 (d, 1H) 3.68 (d, 1H) 3.63 (t, 2H) 3.07 (t, 2H) 2.86 (d, 1H) 2.37 (d, 1H).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Intermediate 142 was coupled with 2-(3,5-difluoro-phenyl)-ethylamine following procedure F. The resulting product was deprotected following procedure G2. LC-MS showed the product had the expected M+H+ of 438. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.3 ppm) δ 8.32 (s, 1H) 8.12 (d, 1H)) 7.98 (d, 1H) 7.47 (m, 2H) 7.12 (d, 1H) 6.90 (d, 2H) 6.75 (d, 1H) 3.75 (t, 2H) 3.60 (m, 4H) 3.47 (t, 2H) 2.98 (t, 2H) 2.90 (t, 2H) 1.04 (d, 6H).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Intermediate 141 was coupled with 2-(3,5-difluoro-phenyl)-ethylamine following procedure F. The resulting product was deprotected following procedure G2. LC-MS showed the product had the expected M+H3O+of 456. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.3 ppm) δ 8.76 (s, 1H) 8.36 (d, 1H) 8.33 (d, 1H) 7.97 (d, 1H) 7.70 (t, 2H) 7.03 (d, 2H) 6.76 (m, 1H) 4.54 (s, 2H) 3.98 (t, 2H) 3.72 (s, 2H) 3.35 (m, 4H) 3.10 (t, 2H) 1.74 (s, 6H).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Intermediate 140 was coupled with 2-(3,5-difluoro-phenyl)-ethylamine following procedure F. The resulting product was deprotected following procedure G3. LC-MS showed the product had the expected M+H3O+ of 453. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.3 ppm) δ 8.37 (d, 1H) 8.19 (s, 1H) 8.15 (d, 1H) 7.68 (d, 1H) 7.60 (t, 1H) 7.37 (d, 1H) 6.94 (d, 2H) 6.85 (m, 1H) 4.60 (s, 2H) 4.05 (dd, 1H) 3.94 (t, 2H) 3.52 (dd, 2H) 3.24 (t, 2H) 3.03 (t, 2H) 2.58 (t, 2H).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Intermediate 137 was coupled with 2-(3,5-difluoro-phenyl)-ethylamine following procedure F. The resulting product was deprotected following procedure G2. LC-MS showed the product had the expected M+H+ of 454. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.3 ppm) δ 8.47 (s, 1H) 8.36 (d, 1H)) 8.33 (d, 1H) 7.87 (d, 1H) 7.71 (t, 1H) 7.65 (d, 1H) 7.00 (d, 2H) 6.77 (s, 1H) 4.63 (dd, 1H) 4.36 (s, 2H) 4.08 (t, 2H) 3.84 (dd, 2H) 3.65 (t, 2H) 3.47 (t, 2H) 3.09 (t, 2H).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Intermediate 136 was coupled with 2-(3,5-difluoro-phenyl)-ethylamine following procedure F. The resulting product was deprotected following procedure G3. LC-MS showed the product had the expected M+H+ of 418 LC-MS showed the product had the expected M+H+ of 438. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.3 ppm) δ 8.70 (s, 1H) 8.39 (d, 2H) 7.97 (d, 1H)) 7.74 (d, 2H) 7.00 (d, 2H) 6.86 (d, 1H) 4.57 (s, 2H) 4.06 (m, 1H) 3.88 (m, 1H) 3.72 (m, 1H) 3.57 (m, 1H) 3.42 (d, 2H) 3.10 (t, 2H) 2.92 (m, 2H) 2.38 (m, 2H) 1.38 (d, 3H).