((3R,4R)-4-aMinotetrahydro-2H-pyran-3-yl)carbaMate

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

Procedure: To a mixture of 3,5-dichloropyrazine-2-carbonitrile (369 mg, 2.09 mmol) and tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (500 mg, 2.3 mmol) in AcCN (7.5 mL) was added DIPEA (0.41 mL, 2.3 mmol). After stirring at room temperature for 5 h, it was diluted with EtOAc, washed with sat. NaHCO3, organic layer was separated and washed with brine, dried and concentrated to give tert-butyl (3R,4R)-4-(6-chloro-5-cyanopyrazin-2-ylamino)tetrahydro-2H-pyran-3-ylcarbamate (880 mg). washed with sat. NaHCO3, organic layer was separated washed with brine dried concentrated

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a 16×100 mm screw cap test tube were added HATU (80.5 mg, 212 μmol.20) and tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (prepared as described in WO2010/97248 A1, 2010; 38.1 mg, 176 μmol) then 2-(5-methoxy-1-methyl-1H-indazol-3-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (80 mg, 176 mmol) dissolved in DMF (2.00 mL) was added to give a light yellow solution which immediately formed a white precipitated. The reaction mixture stirred at 25° C. overnight, solvents evaporated and residue purified by chromatography (60 g column, 50 μm from Analogix, 0 to 5% over 15 min (MeOH containing 10% ammonium hydroxide)/dichloromethane to yield tert-butyl (3R,4R)-4-(2-(5-methoxy-1-methyl-1H-indazol-3-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamido)tetrahydro-2H-pyran-3-ylcarbamate (115 mg, 176 μmol, 100%) as a very light yellow solid. MS (M+Na)+=674 (>90% purity); 1H NMR (CDCl3) δ: 9.29 (s, 1H), 8.51 (d, J=9.1 Hz, 1H), 8.37 (s, 2H), 7.48 (d, J=9.1 Hz, 1H), 7.31 (dd, J=9.1, 3.0 Hz, 1H), 6.27 (d, J=10.2 Hz, 1H), 5.75 (s, 2H), 4.59-4.81 (m, 1H), 4.18-4.36 (m, 4H), 3.91-4.16 (m, 5H), 3.54-3.81 (m, 4H), 2.33 (qd, J=12.7, 4.9 Hz, 1H), 1.89 (d, J=13.2 Hz, 1H), 0.93-1.12 (m, 2H), 0.82 (s, 9H), 0.00 (s, 9H). In a 16×100 mm screw cap test tube was added to give a light yellow solution which immediately formed a white precipitated solvents evaporated residue purified by chromatography (60 g column, 50 μm from Analogix, 0 to 5% over 15 min (MeOH containing 10% ammonium hydroxide)/dichloromethane

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a 16×100 mm screw cap test tube were added HATU (80.5 mg, 212 μmol.20) and tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (prepared as described in WO2010/97248 A1, 2010; 38.1 mg, 176 μmol) then 2-(5-methoxy-1-methyl-1H-indazol-3-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (80 mg, 176 mmol) dissolved in DMF (2.00 mL) was added to give a light yellow solution which immediately formed a white precipitated. The reaction mixture stirred at 25° C. overnight, solvents evaporated and residue purified by chromatography (60 g column, 50 μm from Analogix, 0 to 5% over 15 min (MeOH containing 10% ammonium hydroxide)/dichloromethane to yield tert-butyl (3R,4R)-4-(2-(5-methoxy-1-methyl-1H-indazol-3-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamido)tetrahydro-2H-pyran-3-ylcarbamate (115 mg, 176 μmol, 100%) as a very light yellow solid. MS (M+Na)+=674 (>90% purity); 1H NMR (CDCl3) δ: 9.29 (s, 1H), 8.51 (d, J=9.1 Hz, 1H), 8.37 (s, 2H), 7.48 (d, J=9.1 Hz, 1H), 7.31 (dd, J=9.1, 3.0 Hz, 1H), 6.27 (d, J=10.2 Hz, 1H), 5.75 (s, 2H), 4.59-4.81 (m, 1H), 4.18-4.36 (m, 4H), 3.91-4.16 (m, 5H), 3.54-3.81 (m, 4H), 2.33 (qd, J=12.7, 4.9 Hz, 1H), 1.89 (d, J=13.2 Hz, 1H), 0.93-1.12 (m, 2H), 0.82 (s, 9H), 0.00 (s, 9H). In a 16×100 mm screw cap test tube was added to give a light yellow solution which immediately formed a white precipitated solvents evaporated residue purified by chromatography (60 g column, 50 μm from Analogix, 0 to 5% over 15 min (MeOH containing 10% ammonium hydroxide)/dichloromethane

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of tert-butyl 4,6-dichloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate (1.24 g, 3.85 mmol), tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (1.00 g, 4.62 mmol), diisopropylethylamine (3.36 mL, 19.27 mmol) in DMSO (10 mL) and 2-propanol (40 mL) were heated to 100° C. in an oil bath for 20 h. The reaction was repeated on the same scale and both reaction solutions were combined and concentrated. The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient) to give the title compound as a pale pinkish-white solid (510 mg, 13%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.36 (s, 9H), 1.50 (s, 3H), 1.59-1.61 (m, 1H), 1.97-1.99 (m, 1H), 1.97-1.99 (m, 1H), 3.46-3.49 (m, 2H), 3.80-3.83 (m, 3H), 4.31-4.33 (m, 1H), 4.73 (s, 1H), 6.59 (d, J=7.30 Hz, 1H), 7.43 (d, J=7.30 Hz, 1H). [M+H] calc'd for C22H30ClFN4O6, 501. found, 501. concentrated The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of tert-butyl 4,6-dichloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate (1.24 g, 3.85 mmol), tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (1.00 g, 4.62 mmol), diisopropylethylamine (3.36 mL, 19.27 mmol) in DMSO (10 mL) and 2-propanol (40 mL) were heated to 100° C. in an oil bath for 20 h. The reaction was repeated on the same scale and both reaction solutions were combined and concentrated. The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient) to give the title compound as a pale pinkish-white solid (510 mg, 13%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.36 (s, 9H), 1.50 (s, 3H), 1.59-1.61 (m, 1H), 1.97-1.99 (m, 1H), 1.97-1.99 (m, 1H), 3.46-3.49 (m, 2H), 3.80-3.83 (m, 3H), 4.31-4.33 (m, 1H), 4.73 (s, 1H), 6.59 (d, J=7.30 Hz, 1H), 7.43 (d, J=7.30 Hz, 1H). [M+H] calc'd for C22H30ClFN4O6, 501. found, 501. concentrated The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of tert-butyl 4,6-dichloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate (1.42 g, 4.43 mmol), tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (1.15 g, 5.52 mmol), diisopropylethylamine (3.87 mL, 22.16 mmol) in DMSO (10 mL) and 2-propanol (40 mL) were heated to 100° C. in an oil bath for 20 h. The solution was then concentrated and the resulting oil was dissolved in water (50 mL) and heated in an oil bath to 50° C. for 1 h then allowed to cool to RT. The solution was subsequently heated to 50° C. for 15 min, allowed to cool to RT, again heated to 50° C. for 15 min, and allowed to cool to RT. The resulting precipitate was filtered and rinsed with water to give the title compound as a pale pinkish-white solid (1.90 g, 86%, 4:1 mixture with regioisomer) which was used in the next step without further purification. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.36 (s, 9H), 1.50 (s, 3H), 1.59-1.61 (m, 1H), 1.97-1.99 (m, 1H), 1.97-1.99 (m, 1H), 3.46-3.49 (m, 2H), 3.80-3.83 (m, 3H), 4.31-4.33 (m, 1H), 4.73 (s, 1H), 6.59 (d, J=7.30 Hz, 1H), 7.43 (d, J=7.30 Hz, 1H). [M+H] calc'd for C22H30ClFN4O6, 501. found, 501. The solution was then concentrated the resulting oil was dissolved in water (50 mL) heated in an oil bath to 50° C. for 1 h to cool to RT The solution was subsequently heated to 50° C. for 15 min to cool to RT again heated to 50° C. for 15 min to cool to RT The resulting precipitate was filtered rinsed with water

Conditions: temp:85.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 4,6-dichloro-2-(2,4-dimethoxybenzyl)-7-fluoro-1H-pyrrolo[3,4-c]pyridin-3(2H)-one (320 mg, 0.862 mmol), tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (280 mg, 1.293 mmol) and DIPEA (0.226 mL, 1.293 mmol) in ACN (5 mL) was stirred at 85° C. overnight. UPLC indicated the presence of starting material, so the mixture was stirred at 85° C. overnight. UPLC showed about 50% conversion. Additional stirring at 85° C. for 3 d and at 100° C. overnight did not appreciably increase the conversion, so the reaction was stopped and the solvent was removed. The resulting crude material was reconstituted in MeOH/DMF (10 mL) and purified via preparative HPLC eluting with water (0.05% TFA) and ACN (50%, 0.035% TFA). The collected fractions were combined and the ACN was removed via rotary evaporation. The resulting aqueous solution was neutralized with saturated aqueous NaHCO3, washed with EtOAc (2×200 mL), dried over Na2SO4, and filtered. The organic phase was stripped to dryness via rotary evaporation to give the title compound (51 mg, 11%). [M+H] calc'd for C26H32ClFN4O6, 552. found, 552. so the mixture was stirred at 85° C. overnight Additional stirring at 85° C. for 3 d and at 100° C. overnight did not appreciably increase the conversion the solvent was removed purified via preparative HPLC eluting with water (0.05% TFA) and ACN (50%, 0.035% TFA) the ACN was removed via rotary evaporation washed with EtOAc (2×200 mL) dried over Na2SO4 filtered The organic phase was stripped to dryness via rotary evaporation

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

Procedure: 3-(Methylthio)-5-(p-tolylamino)-1,2,4-triazine-6-carboxamide (26 mg, 0.095 mmol) was dissolved in 4 mL NMP. To it was added mCPBA (77%) (86 mg, 0.38 mmol). The mixture was stirred at RT for 1 h. To it was added DIEA (0.17 mL, 0.95 mmol) and tert-butyl((3R,4R)-4-aminotetrahydro-2H-pyran-3-yl)carbamate (41 mg, 0.19 mmol). The mixture was stirred at 80° C. for 2 h. The mixture was diluted with 100 mL EtOAc, washed with 1N NaOH and brine, dried, concentrated in vacuo. It was then treated with neat TFA for 1 h at RT. The mixture was diluted with water and subjected to reverse phase preparative HPLC to isolate the title compound (27 mg) as HCl salt. MS found for C16H21N7O2 as (M+H)+ 344.4. UV: λ=235, 273 nm. Proton NMR: (CD3OD) δ 7.56 (2H, d, J=6.8 Hz), 7.31 (2H, d, J=7.6 Hz), 4.36 (1H, dt, J=11.6; 5.2 Hz), 4.10 (1H, dd, J=11.6; 4.8 Hz), 3.99 (1H, d, J=13.2 Hz), 3.74 (1H, s), 3.67-3.61 (2H, m), 2.38 (3H, s), 2.16 (1H, m), 1.91 (1H, m) ppm. The mixture was stirred at 80° C. for 2 h washed with 1N NaOH and brine dried concentrated in vacuo It was then treated with neat TFA for 1 h at RT The mixture was diluted with water

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

Procedure: 3-(Methylthio)-5-(p-tolylamino)-1,2,4-triazine-6-carboxamide (26 mg, 0.095 mmol) was dissolved in 4 mL NMP. To it was added mCPBA (77%) (86 mg, 0.38 mmol). The mixture was stirred at RT for 1 h. To it was added DIEA (0.17 mL, 0.95 mmol) and tert-butyl((3R,4R)-4-aminotetrahydro-2H-pyran-3-yl)carbamate (41 mg, 0.19 mmol). The mixture was stirred at 80° C. for 2 h. The mixture was diluted with 100 mL EtOAc, washed with 1N NaOH and brine, dried, concentrated in vacuo. It was then treated with neat TFA for 1 h at RT. The mixture was diluted with water and subjected to reverse phase preparative HPLC to isolate the title compound (27 mg) as HCl salt. MS found for C16H21N7O2 as (M+H)+ 344.4. UV: λ=235, 273 nm. Proton NMR: (CD3OD) δ 7.56 (2H, d, J=6.8 Hz), 7.31 (2H, d, J=7.6 Hz), 4.36 (1H, dt, J=11.6; 5.2 Hz), 4.10 (1H, dd, J=11.6; 4.8 Hz), 3.99 (1H, d, J=13.2 Hz), 3.74 (1H, s), 3.67-3.61 (2H, m), 2.38 (3H, s), 2.16 (1H, m), 1.91 (1H, m) ppm. The mixture was stirred at 80° C. for 2 h washed with 1N NaOH and brine dried concentrated in vacuo It was then treated with neat TFA for 1 h at RT The mixture was diluted with water

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of tert-butyl 4,6-dichloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate (1.24 g, 3.85 mmol), tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (1.00 g, 4.62 mmol), diisopropylethylamine (3.36 mL, 19.27 mmol) in DMSO (10 mL) and 2-propanol (40 mL) were heated to 100° C. in an oil bath for 20 h. The reaction was repeated on the same scale and both reaction solutions were combined and concentrated. The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient) to give the title compound as a pale pinkish-white solid (510 mg, 13%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.36 (s, 9 H), 1.50 (s, 3 H), 1.59-1.61 (m, 1 H), 1.97-1.99 (m, 1 H), 1.97-1.99 (m, 1 H), 3.46-3.49 (m, 2 H), 3.80-3.83 (m, 3 H), 4.31-4.33 (m, 1 H), 4.73 (s, 1 H), 6.59 (d, J=7.30 Hz, 1 H), 7.43 (d, J=7.30 Hz, 1 H). [M+H] calc'd for C22H30ClFN4O6, 501; found, 501. concentrated The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of tert-butyl 4,6-dichloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate (1.24 g, 3.85 mmol), tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (1.00 g, 4.62 mmol), diisopropylethylamine (3.36 mL, 19.27 mmol) in DMSO (10 mL) and 2-propanol (40 mL) were heated to 100° C. in an oil bath for 20 h. The reaction was repeated on the same scale and both reaction solutions were combined and concentrated. The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient) to give the title compound as a pale pinkish-white solid (510 mg, 13%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.36 (s, 9 H), 1.50 (s, 3 H), 1.59-1.61 (m, 1 H), 1.97-1.99 (m, 1 H), 1.97-1.99 (m, 1 H), 3.46-3.49 (m, 2 H), 3.80-3.83 (m, 3 H), 4.31-4.33 (m, 1 H), 4.73 (s, 1 H), 6.59 (d, J=7.30 Hz, 1 H), 7.43 (d, J=7.30 Hz, 1 H). [M+H] calc'd for C22H30ClFN4O6, 501; found, 501. concentrated The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of tert-butyl 4,6-dichloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate (1.42 g, 4.43 mmol), tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (1.15 g, 5.52 mmol), diisopropylethylamine (3.87 mL, 22.16 mmol) in DMSO (10 mL) and 2-propanol (40 mL) were heated to 100° C. in an oil bath for 20 h. The solution was then concentrated and the resulting oil was dissolved in water (50 mL) and heated in an oil bath to 50° C. for 1 h then allowed to cool to RT. The solution was subsequently heated to 50° C. for 15 min, allowed to cool to RT, again heated to 50° C. for 15 min, and allowed to cool to RT. The resulting precipitate was filtered and rinsed with water to give the title compound as a pale pinkish-white solid (1.90 g, 86%, 4:1 mixture with regioisomer) which was used in the next step without further purification. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.36 (s, 9 H), 1.50 (s, 3 H), 1.59-1.61 (m, 1 H), 1.97-1.99 (m, 1 H), 1.97-1.99 (m, 1 H), 3.46-3.49 (m, 2 H), 3.80-3.83 (m, 3 H), 4.31-4.33 (m, 1 H), 4.73 (s, 1 H), 6.59 (d, J=7.30 Hz, 1 H), 7.43 (d, J=7.30 Hz, 1 H). [M+H] calc'd for C22H30ClFN4O6, 501; found, 501. The solution was then concentrated the resulting oil was dissolved in water (50 mL) heated in an oil bath to 50° C. for 1 h to cool to RT The solution was subsequently heated to 50° C. for 15 min to cool to RT again heated to 50° C. for 15 min to cool to RT The resulting precipitate was filtered rinsed with water