(2R)-butan-2-amine

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 6-Chloro-3-(2-ethoxy-3,4-dioxo-cyclobut-1-enylamino)-2-hydroxy-N-methoxy-N-ethyl-benzenesulfonamide (Intermediate FA) (100 mg, 0.25 mmol) in MeCN (1 ml) and EtOH (1 ml) was added (R)-(−)-2-Aminobutane (30.7 mg, 0.42 mmol) followed by triethylamine (69 μl, 0.49 mmol). The reaction mixture was heated at 70° C. for 1 hour. The reaction mixture was concentrated in vacuo and dissolved in EtOAc. The EtOAc solution was washed with 1M HCl (aq) and concentrated in vacuo. The residue was triturated with DCM to give a white solid; [M+H]+ 432.2. 1H NMR (DMSO) 0.9 (3H, t, CH3), 1.2 (6H, m), 1.5-1.6 (2H, m), 3.3 (2H, m), 3.7 (3H, s, CH3) 4.1 (1H, m), 7.3 (1H, d), 8.1 (1H, d), 8.3 (1H, d), 9.4 (1H, s), 10.1 (1H, s). The reaction mixture was concentrated in vacuo dissolved in EtOAc The EtOAc solution was washed with 1M HCl (aq) concentrated in vacuo The residue was triturated with DCM to give a white solid

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 6-chloro-3-(2-ethoxy-3,4-dioxo-cyclobut-1-enylamino)-2-hydroxy-N-methoxy-N-methyl-benzenesulfonamide (Intermediate A) (1 g, 2.56 mmol) in THF (20 ml) was added (R)-(−)-2-aminobutane (0.52 ml, 5.12 mmol). The reaction mixture was heated at 50° C. for 7 hours. The reaction mixture was concentrated in vacuo and dissolved in EtOAc. The EtOAc solution was washed with 1M HCl (aq) and brine. The EtOAc solution was dried (MgSO4) and concentrated in vacuo. The residue was crystallized from toluene to give a solid; [M+H]+ 418.2. 1H NMR (DMSO) 0.9 (3H, t, CH3), 1.2 (3H, d, CH3), 1.5 (2H, m), 3.0 (3H, s, CH3), 3.6 (3H, s, CH3), 4.0 (1H, m), 7.2 (1H, d), 8.1 (1H, d), 8.3 (1H, d), 9.4 (1H, s), 10.1 (1H, s). The reaction mixture was concentrated in vacuo dissolved in EtOAc The EtOAc solution was washed with 1M HCl (aq) and brine The EtOAc solution was dried (MgSO4) concentrated in vacuo The residue was crystallized from toluene to give a solid

Conditions: temp:95.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Methyl 4-cyano-5-iodo-2-(trifluoromethyl)benzoate (174 mg, 0.49 mmol) was dissolved in dioxane (2 mL) and was sparged with nitrogen for 15 minutes. XANTPHOS (57 mg, 0.098 mmol), cesium carbonate (350 mg, 1.07 mmol), (R)-sec-butylamine (0.1 mL, 0.986 mmol), and tris(dibenzylideneacetone)dipalladium (45 mg, 0.049 mmol) were added, and the mixture was stirred in a sealed tube at 95° C. for 20 h. The reaction mixture was cooled to ambient temperature and was filtered through celite. The filter cake was washed with ethyl acetate and the filtrate was concentrated to afford an orange oil which was purified by column chromatography (silica gel, 5-15% ethyl acetate in hexanes) to afford (R)-methyl 5-(sec-butylamino)-4-cyano-2-(trifluoromethyl)benzoate (45 mg, 0.150 mmol, 31% yield) as a yellow oil. GCMS for C14H15F3N2O2: 300 (M+). was sparged with nitrogen for 15 minutes The reaction mixture was cooled to ambient temperature was filtered through celite The filter cake was washed with ethyl acetate the filtrate was concentrated to afford an orange oil which was purified by column chromatography (silica gel, 5-15% ethyl acetate in hexanes)

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

Procedure: Synthesized according to the method of reagent preparation 50 by using (1R)-1-methylpropylamine in step 1 then following step 2 with the conversion of ethyl 2-bromo-4-cyano-5-{[(1R)-1-methylpropyl]amino}benzoate to ethyl 4-cyano-2-ethyl-5-{[(1R)-1-methylpropyl]amino}benzoate by treatment with ethylmagnesium chloride according to the method described in Synlett 1996, 5, 473-474 then proceeding through steps 3 and 4. 1H NMR (400 MHz, DMSO-d6): 7.94 (s, 1H), 7.81 (d, 1H), 7.49 (s, 1H), 7.27 (s, 1H), 6.98 (s, 1H), 2.67-2.75 (m, 2H), 1.44-1.53 (m, 2H), 1.06-1.15 (m, 6H), 0.89 (t, 3H). Synthesized according to the method of reagent preparation 50

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

Procedure: Synthesized according to the method of reagent preparation 50 by using (1R)-1-methylpropylamine in step 1 then following step 2 with the conversion of ethyl 2-bromo-4-cyano-5-{[(1R)-1-methylpropyl]amino}benzoate to ethyl 4-cyano-2-(ethylamino)-5-{[(1R)-1-methylpropyl]amino}benzoate according to the method described in step 1 then proceeding through steps 3 and 4. MS (EI) for C14H21N3O3: 280 (MH+). Synthesized according to the method of reagent preparation 50

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

Procedure: Synthesized according to the method of reagent preparation 50 by using (1R)-1-methylpropylamine in step 1 then following step 2 with the conversion of ethyl 2-bromo-4-cyano-5-{[(1R)-1-methylpropyl]amino}benzoate to ethyl 4-cyano-2-(ethylamino)-5-{[(1R)-1-methylpropyl]amino}benzoate according to the method described in step 1 then proceeding through steps 3 and 4. MS (EI) for C14H21N3O3: 280 (MH+). Synthesized according to the method of reagent preparation 50

Conditions: temp:95.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of methyl 4-cyano-5-iodo-2-methylbenzoate (500 mg, 1.66 mmol) in 1,4-dioxane (25 mL) was added 9,9-dimethyl-4,5-(bis(diphenylphosphino)xanthene (96 mg, 0.166 mmol), tris(dibenzylideneacetone)-dipalladium (76 mg, 0.083 mmol), cesium carbonate (1.08 g, 3.32 mmol) and (R)-butan-2-amine (506 μL, 4.98 mmol). The reaction mixture was heated to 95° C. and stirred for 16 h, at which time it was cooled to room temperature. The heterogeneous mixture was filtered through a bed of celite, and the filter cake rinsed with ethyl acetate. The filtrate was concentrated, and the residue was purified by flash chromatography (100% hexanes to 5% ethyl acetate in hexanes) to afford (R)-methyl 5-(sec-butylamino)-4-cyano-2-methylbenzoate (300 mg, 73%) as a bright yellow oil. MS (EI) for C14H18N2O2: 247 (MH+). was cooled to room temperature The heterogeneous mixture was filtered through a bed of celite the filter cake rinsed with ethyl acetate The filtrate was concentrated the residue was purified by flash chromatography (100% hexanes to 5% ethyl acetate in hexanes)

Conditions: temp:105.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Degas a sealed tube for 5 min and add a suspension 2-benzyloxy-6-chloro-isonicotinic acid methyl ester (1 g, 3.604 mmol), palladium acetate (100 mg, 0.445 mmol), racemic 2,2′-bis-diphenylphosphanyl-[1,1′]binaphthalenyl (307 mg, 0.493 mmol), cesium carbonate (1.2 g, 3.683 mmol) and (R)-sec-butylamine (0.5 mL, 1.387 mmol) in toluene (14 mL). Heat to 105° C. and stir for 20 h. Cool to room temperature, concentrate and purify (silica gel chromatography, eluting with 3:97 ethyl acetate:hexanes) to give the title compound. Degas a sealed tube for 5 min Cool to room temperature concentrate purify (silica gel chromatography, eluting with 3:97 ethyl acetate:hexanes)

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Combined (R)-butan-2-amine (22.8 mg, 0.312 mmol) and a solution consisting of 6-(4-(4-cyano-2-methylphenyl)-5-hydroxy-1H-pyrazol-1-yl)nicotinic acid (50 mg, 0.156 mmol), HOBT hydrate (35.9 mg, 0.234 mmol), EDCI (44.9 mg, 0.234 mmol), and Hunig's base (0.103 mL, 0.624 mmol) in DMA (1 mL) and stirred at 50° C. for 4 h. The reaction mixture was then purified via preparative HPLC to give the title compound as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 0.90 (t, J=7.45 Hz, 3 H) 1.17 (d, J=6.57 Hz, 3 H) 1.44-1.63 (m, 2 H) 2.44 (s, 3 H) 3.95 (dt, J=14.02, 7.14 Hz, 1 H) 7.57-7.90 (m, 3 H) 7.92-8.73 (m, 4 H) 8.82-8.97 (m, 1 H) 13.20 (br. s., 1 H). MS m/z [M+H]+ 376. The reaction mixture was then purified via preparative HPLC

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

Procedure: This compound was prepared as TFA salt by using procedures analogous to those described for the synthesis of Example 19, Step 3 started from 4-{3-(cyanomethyl)-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-1-yl}benzoic acid and (2R)-butan-2-amine (Aldrich: Cat. #296651). LCMS (M+H)+: m/z=455.2. 1H NMR (500 MHz, DMSO-d6) δ 12.36 (s, 1H), 8.99 (s, 1H), 8.76 (s, 1H), 8.50 (s, 1H), 7.81 (d, J=8.2 Hz, 1H), 7.76 (d, J=8.7 Hz, 2H), 7.68 (dd, J=3.3, 2.5 Hz, 1H), 7.14 (dd, J=3.4, 1.5 Hz, 1H), 6.59 (d, J=8.7 Hz, 2H), 4.55 (s, 2H), 4.30 (d, J=8.6 Hz, 2H), 3.89 (m, 1H), 3.75 (s, 2H), 1.58-1.39 (m, 2H), 1.10 (d, J=6.6 Hz, 3H), 0.84 (t, J=7.4 Hz, 3H). those described for the synthesis of Example 19, Step 3

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Combined (R)-butan-2-amine (22.8 mg, 0.312 mmol) and a solution consisting of 6-(4-(4-cyano-2-methylphenyl)-5-hydroxy-1H-pyrazol-1-yl)nicotinic acid (50 mg, 0.156 mmol), HOBT hydrate (35.9 mg, 0.234 mmol), EDCI (44.9 mg, 0.234 mmol), and Hunig's base (0.103 mL, 0.624 mmol) in DMA (1 mL) and stirred at 50° C. for 4 h. The reaction mixture was then purified via preparative HPLC to give the title compound as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 0.90 (t, J=7.45 Hz, 3H) 1.17 (d, J=6.57 Hz, 3H) 1.44-1.63 (m, 2H) 2.44 (s, 3H) 3.95 (dt, J=14.02, 7.14 Hz, 1H) 7.57-7.90 (m, 3H) 7.92-8.73 (m, 4H) 8.82-8.97 (m, 1H) 13.20 (br. s., 1H). MS m/z [M+H]+ 376. The reaction mixture was then purified via preparative HPLC

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Combined (R)-butan-2-amine (22.8 mg, 0.312 mmol) and a solution consisting of 6-(4-(4-cyano-2-methylphenyl)-5-hydroxy-1H-pyrazol-1-yl)nicotinic acid (50 mg, 0.156 mmol), HOBT hydrate (35.9 mg, 0.234 mmol), EDCI (44.9 mg, 0.234 mmol), and Hunig's base (0.103 mL, 0.624 mmol) in DMA (1 mL) and stirred at 50° C. for 4 h. The reaction mixture was then purified via preparative HPLC to give the title compound as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 0.90 (t, J=7.45 Hz, 3H) 1.17 (d, J=6.57 Hz, 3H) 1.44-1.63 (m, 2H) 2.44 (s, 3H) 3.95 (dt, J=14.02, 7.14 Hz, 1H) 7.57-7.90 (m, 3H) 7.92-8.73 (m, 4H) 8.82-8.97 (m, 1H) 13.20 (br. s., 1H). MS m/z [M+H]+ 376. The reaction mixture was then purified via preparative HPLC