2,4,5-trifluorobenzoyl chloride

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To an oven-dried flask was added potassium ethyl malonate (3.66 g, 21.5 mmol) and freshly distilled acetonitrile (70 mL). The mixture was cooled to 10° C. to 15° C. and stirred under an atmosphere of nitrogen and to it added anhydrous magnesium chloride (2.44 g, 25.7 mmol) and triethylamine (2.05 g, 20.3 mmol). The mixture was then stirred at room temperature under nitrogen for 2.5 hours. The resultant white slurry was recooled to 0° C. and 2,4,5-trifluorobenzoyl chloride was added over a period of 15 minutes, followed by more triethylamine (0.23 g, 2.3 mmol). The mixture was then stirred at room temperature overnight under nitrogen. Acetonitrile was then removed in vacuo and toluene (30 mL) was added. The mixture was reconcentrated and more toluene (60 mL) then added. Hydrochloric acid (1.5 M, 40 mL) was cautiously added, ensuring that the temperature did not exceed 25° C., and the aqueous layer separated. The organic fraction was washed with 1.5 M HCl (2×25 mL) and water (2×25 mL), dried over MgSO4, and solvent removed in vacuo to afford 3-oxo-3-(2,4,5-trifluoro-phenyl-propionic acid ethyl ester as a pale orange solid (2.35 g, 9.55 mmol, 94%). Rf 0.55 (CH2C2), mp 57-59° C. FTIR, νmax/cm −1 3088, 2990, 1735, 1687, 1514, 1429, 1321, 1205, 1140, 1055, 897, 807. 1 H NMR (CDCl3, 250 MHz), δ/ppm [12.69 (s), 5.81 (s) and 3.92 (d, J=3.9 Hz)] (2 H, keto-enol tautomers); 7.74 (1 H, m, Ar H); 6.98 (1 H, m, Ar H); 4.24 and 4.17 (2 H, both q, 3J=7.1 Hz); 1.31 and 1.24 (3 H, both t, 3J=7.1 Hz). 13C{1 H}NMR (CDCl3, 63 MHz), δ/ppm 187.8 (C=O); 173.0 (—HC=C); 166.9 (CO2Et); 163.7, 159.8, 155.9, 151.8, 149.0, 145.3, 120.9 (quat. Ar C); 118.7, 106.6 (Ar C—H); 92.9 (HC=C); 61.4 and 60.6 (—OCH2); 49.4 (—OCCH2CO—); 14.0 (—CH3). 19FNMR (CDCl3, 235 MHz) δ/ppm −110.6 and −111.7 (m, Ar F); −123.5 and −129.0 (m, Ar F); −140.5 and −141.7 (m, Ar F). λmax/nm (δ/dm3mol−1cm−1) 295 (4781), 281 (3962), 240 (5191). HRMS (EI), M+/z C11H9F3O3 (M−) requires 246.0504; found 246.0514. The mixture was cooled to 10° C. to 15° C. The mixture was then stirred at room temperature under nitrogen for 2.5 hours was recooled to 0° C. The mixture was then stirred at room temperature overnight under nitrogen Acetonitrile was then removed in vacuo and toluene (30 mL) was added more toluene (60 mL) then added Hydrochloric acid (1.5 M, 40 mL) was cautiously added did not exceed 25° C. the aqueous layer separated The organic fraction was washed with 1.5 M HCl (2×25 mL) and water (2×25 mL) dried over MgSO4, and solvent removed in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Beginning with 0.010 gm (0.044 mMol) 5-amino-3-(1-methylpiperidin-4-yl)pyrrolo[3,2-b]pyridine and 0.007 mL (0.055 mMol) 2,4,5-trifluorobenzoyl chloride, 0.015 gm (86%) of the title compound were prepared essentially by the procedure described in Example 7.

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Intermediate 16D was prepared according to the procedure for the synthesis of intermediate 15 by replacing 1-Boc-4-piperidone with dihydro-2H-pyran-3(4H)-one, and replacing 3,4-difluorobenzoyl chloride with 2,4,5-trifluorobenzoyl chloride. LCMS (+ESI) m/z=255 [M+H]+.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Intermediate 16D was prepared according to the procedure for the synthesis of intermediate 15 by replacing 1-Boc-4-piperidone with dihydro-2H-pyran-3(4H)-one, and replacing 3,4-difluorobenzoyl chloride with 2,4,5-trifluorobenzoyl chloride. LCMS (+ESI) m/z=255 [M+H]+.