5-chloro-2,4-difluoro-N-methylsulfonylbenzamide

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of (2,2,3,3-tetramethylcyclopropyl)methanol (48 mg, 0.37 mmol) in dry DMSO (5 mL) was added potassium t-butoxide (124 mg, 1.11 mmol) at room temperature. After stirring for 30 min, 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide (50 mg, 0.20 mmol) was added and the reaction mixture was stirred at room temperature for 16 hrs. The mixture was cooled to 0° C., quenched by hydrochloride acid (1N, 30 mL) and extracted with ethyl acetate (50 mL). The organic layer was washed with water (40 mL×2), dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The crude product was purified by prep HPLC (20%-50% MeCN in 0.1% formic acid) to afford the title compound as a white solid (7 mg, 10%). LCMS (ESI) Method A: RT=5.28 min, m/z: 268.1 [M-109]+; 1H-NMR (500 MHz, DMSO-d6): δ 8.13 (br s, 1H), 7.76 (d, J=8.0 Hz, 1H), 7.21-7.10 (m, 1H), 4.18 (d, J=7.0 Hz, 2H), 3.02 (s, 3H), 1.10 (s, 6H), 1.03 (s, 6H), 0.74 (t, J=7.5 Hz, 1H). the reaction mixture was stirred at room temperature for 16 hrs quenched by hydrochloride acid (1N, 30 mL) extracted with ethyl acetate (50 mL) The organic layer was washed with water (40 mL×2) dried over anhydrous sodium sulfate filtered concentrated in vacuo The crude product was purified by prep HPLC (20%-50% MeCN in 0.1% formic acid)

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

Procedure: To a stirred solution of (2,2,3,3-tetramethylcyclopropyl)methanol (80 mg, 0.62 mmol) in dry DMF (10 mL) at 0° C. was added NaH (25 mg, 0.62 mmol). After being stirred for 30 min, 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide (54 mg, 0.21 mmol) was added. After being stirred at room temperature for 18 h, the mixture was diluted with water (10 mL) and EtOAc (20 mL). The organic layer was separated and the aqueous layer was extracted with EtOAc (20 ml×2). The combined organic layers was dried over Na2SO4 and concentrated. The residue was purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min) to afford 5-chloro-2-fluoro-N-(methylsulfonyl)-4-((2,2,3,3-tetramethylcyclopropyl)-methoxy)benzamide (20 mg, 25% yield) as a white solid. LCMS (ESI) Method A: RT=5.11 min, m/z: 268 [M-109]+. 1H NMR (500 MHz, DMSO-d6): δ 7.35 (d, J=9.0 Hz 1H), 7.03 (d, J=7.0 Hz, 1H), 6.04 (brs, 1H), 3.99 (d, J=7.5 Hz, 2H), 2.80 (s, 3H), 1.06 (s, 6H), 0.99 (s, 6H), 0.65 (t, J=7.5 Hz, 1H); 13C NMR (125 MHz, MeOH-d4): δ 159.4 (d, J=3.5 Hz), 133.9 (d, J=2.1 Hz), 114.1, 104.2, 103.9, 71.4, 41.7, 32.5, 24.2, 23.7, 17.4. After being stirred at room temperature for 18 h The organic layer was separated the aqueous layer was extracted with EtOAc (20 ml×2) The combined organic layers was dried over Na2SO4 concentrated The residue was purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min)

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

Procedure: Following the procedure as described in Example 8 and making variations as required to replace 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide with 5-chloro-N—(N,N-dimethylsulfamoyl)-2,4-difluorobenzamide and adamantan-1-ylmethanol with 4-(trifluoromethyl)cyclohexanol, the title compound was obtained as a colorless solid (0.02 g, 19%): 1H NMR (300 MHz, DMSO-d6) δ 11.75 (s, 1H), 7.75 (d, J=7.5 Hz, 1H), 7.35 (d, J=12.5 Hz, 1H), 4.94 (s, 1H), 2.87 (s, 6H), 2.46-2.35 (m, 1H), 2.03-1.93 (m, 2H), 1.72-1.53 (m, 6H); MS (ES−) m/z 445.2, 447.2 (M−1).

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

Procedure: Following the procedure as described in Example 8 and making variations as required to replace 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide with 5-chloro-N—(N,N-dimethylsulfamoyl)-2,4-difluorobenzamide and adamantan-1-ylmethanol with 4-(trifluoromethyl)cyclohexanol, the title compound was obtained as a colorless solid (0.02 g, 19%): 1H NMR (300 MHz, DMSO-d6) δ 11.75 (s, 1H), 7.73 (d, J=7.5 Hz, 1H), 7.40 (d, J=12.6 Hz, 1H), 4.61-4.53 (m, 1H), 2.87 (s, 6H), 2.45-2.32 (m, 1H), 2.18-2.10 (m, 2H), 1.97-1.89 (m, 2H), 1.55-1.44 (m, 4H); MS (ES−) m/z 445.1, 447.1 (M−1).

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

Procedure: To a stirred solution of (2,2,3,3-tetramethylcyclopropyl)methanol (80 mg, 0.62 mmol) in dry DMF (10 mL) at 0° C. was added NaH (25 mg, 0.62 mmol). After being stirred for 30 min, 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide (54 mg, 0.21 mmol) was added. After being stirred at room temperature for 18 h, the mixture was diluted with water (10 mL) and EtOAc (20 mL). The organic layer was separated and the aqueous layer was extracted with EtOAc (20 ml×2). The combined organic layers was dried over Na2SO4 and concentrated. The residue was purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min) to afford 5-chloro-2-fluoro-N-(methylsulfonyl)-4-((2,2,3,3-tetramethylcyclopropyl)-methoxy)benzamide (20 mg, 25% yield) as a white solid. LCMS (ESI) Method A: RT=5.11 min, m/z: 268 [M−109]+. 1H NMR (500 MHz, DMSO-d6): δ 7.35 (d, J=9.0 Hz 1H), 7.03 (d, J=7.0 Hz, 1H), 6.04 (brs, 1H), 3.99 (d, J=7.5 Hz, 2H), 2.80 (s, 3H), 1.06 (s, 6H), 0.99 (s, 6H), 0.65 (t, J=7.5 Hz, 1H); 13C NMR (125 MHz, MeOH-d4): δ 159.4 (d, J=3.5 Hz), 133.9 (d, J=2.1 Hz), 114.1, 104.2, 103.9, 71.4, 41.7, 32.5, 24.2, 23.7, 17.4. After being stirred at room temperature for 18 h The organic layer was separated the aqueous layer was extracted with EtOAc (20 ml×2) The combined organic layers was dried over Na2SO4 concentrated The residue was purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min)

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

Procedure: 5-chloro-2,4-difluorobenzoic acid (0.291 g, 1.511 mmol), N-Ethyl-N′-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.438 g, 2.285 mmol) and 4-dimethylaminopyridine (0.420 g, 3.438 mmol) were suspended in DCM (5 mL). Methanesulfonamide (0.222 g, 2.334 mmol) was added and the mixture was stirred at room temperature for 18 hours. The reaction mixture was diluted with DCM (10 mL) and washed with aqueous HCl solution (2 M, 2×15 mL). The organic layer was dried with a phase separating cartridge and concentrated in vacuo to yield the title compound as a white solid (0.388 g): washed with aqueous HCl solution (2 M, 2×15 mL) The organic layer was dried with a phase separating cartridge concentrated in vacuo

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

Procedure: To 3-chloro-4-(trifluoromethyl)phenol (Preparation 16, 110 mg, 0.56 mmol) and 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide (Preparation 13, 150 mg, 0.56 mmol) dissolved in dimethylsulfoxide (5 ml) was added potassium carbonate (232 mg, 1.68 mmol) and the mixture stirred at 90° C. for 18 hours under nitrogen. The mixture was poured onto ammonium chloride (aq) and extracted with ethyl acetate (3×20 mL), washed with water (3×20 mL) and dried (MgSO4). Purification of the crude product by silica gel column chromatography using 80% Ethyl acetate in heptane furnished the title compound as white solid (12.2 mg, 4.9%). The mixture was poured onto ammonium chloride (aq) extracted with ethyl acetate (3×20 mL) washed with water (3×20 mL) dried (MgSO4) Purification of the crude product by silica gel column chromatography

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Sodium hydride (60% in mineral oil, 0.012 g, 0.306 mmol) was added to a solution of 1-isopropyl-1H-indazol-5-ol (Preparation 39, 0.045 g, 0.225 mmol) in THF (3.0 mL) while cooling the reaction in an ice bath and stirred for 40 minutes. 5-Chloro-2,4-difluoro-N(methylsulfonyl)benzamide (Preparation 28, 0.076 g, 0.28 mmol) was then added and the reaction was heated at 60° C. for 16 hours. The reaction mixture was concentrated in vacuo and the residue treated with EtOAc (25.0 mL) and washed with water (30.0 mL), followed by brine (30.0 mL). The organic layer was dried over sodium sulfate, filtered, concentrated in vacuo and the residue purified by silica gel chromatography eluting with 2% Methanol in DCM to yield the title compound as a white solid (8.3 mg): while cooling the reaction in an ice bath The reaction mixture was concentrated in vacuo the residue treated with EtOAc (25.0 mL) washed with water (30.0 mL) The organic layer was dried over sodium sulfate filtered concentrated in vacuo the residue purified by silica gel chromatography eluting with 2% Methanol in DCM

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

Procedure: To a solution of (1-benzhydrylazetidin-3-yl)methanol (40.4 mg, 0.159 mmol) and 5-chloro-2,4-difluoro-N-methylsulfonyl-benzamide (43.0 mg, 0.159 mmol) in DMSO (0.80 mL) at rt was added potassium tert-butoxide in 1:10 THF-DMSO (0.38 mL, 0.93 M). The mixture was stirred at rt for 1 hr. LCMS showed major product. Diluted with EtOAc, the contents were washed with 1:4 mixture of 1M HCl and 1M NaH2PO4 (2×) and brine (1×), dried (Na2SO4). After filtration and concentration, the crude was purified with HPLC (55.7 mg). the contents were washed with 1:4 mixture of 1M HCl and 1M NaH2PO4 (2×) and brine (1×) dried (Na2SO4) After filtration and concentration the crude was purified with HPLC (55.7 mg)

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

Procedure: Following the procedure as described in Example 8 and making variations as required to replace 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide with 5-chloro-N-(ethylsulfonyl)-2,4-difluorobenzamide and to replace adamantan-1-ylmethanol with spiro[2.5]octan-6-ylmethanol, the title compound was obtained as a colorless solid (0.378 g, 46%): 1H NMR (300 MHz, CDCl3) δ8.59-8.47 (m, 1H), 8.13-8.05 (m, 1H), 6.75-6.66 (m, 1H), 3.97-3.86 (m, 2H), 3.66-3.55 (m, 2H), 2.02-1.72 (m, 5H), 1.48-1.40 (m, 3H), 1.35-1.22 (m, 2H), 1.01-0.89 (m, 2H), 0.37-0.15 (m, 4H); MS (ES+) m/z 404.1, 406.1 (M+1).

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

Procedure: Following the procedure as described in Example 8 and making variations as required to replace 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide with 5-chloro-N-(cyclopropylsulfonyl)-2,4-difluorobenzamide and to replace adamantan-1-ylmethanol with spiro[2.5]octan-6-ylmethanol, the title compound was obtained as a colorless solid (0.165 g, 28%): 1H NMR (300 MHz, CDCl3) δ8.72-8.59 (m, 1H), 8.16-8.07 (m, 1H), 6.76-6.65 (m, 1H), 3.97-3.86 (m, 2H), 3.17-3.05 (m, 1H), 2.03-1.72 (m, 5H), 1.51-1.42 (m, 2H), 1.36-1.11 (m, 4H), 1.00-0.90 (m, 2H), 0.38-0.14 (m, 4H); MS (ES+) m/z 416.2, 418.2 (M+1).

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

Procedure: Following the procedure as described in Example 8 and making variations as required to replace 5-chloro-2,4-difluoro-N-(methylsulfonyl)benzamide with N-(azetidin-1-ylsulfonyl)-5-chloro-2,4-difluorobenzamide and to replace adamantan-1-ylmethanol with spiro[2.5]octan-6-ylmethanol, the title compound was obtained as a colorless solid (0.61 g, 53%): 1H NMR (300 MHz, CDCl3) δ 8.70-8.57 (m, 1H), 8.17-8.09 (m, 1H), 6.76-6.66 (m, 1H), 4.32-4.19 (m, 4H), 3.96-3.87 (m, 2H), 2.35-2.20 (m, 2H), 2.03-1.70 (m, 5H), 1.39-1.20 (m, 2H), 1.02-0.86 (m, 2H), 0.38-0.16 (m, 4H); MS (ES+) m/z 431.1 (M+1), 433.1 (M+1).