4-bromo-6-fluoro-1H-indole

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A microwave vial was charged with Solvias catalyst (8 mg), tripotassium phosphate (90 mg) and 4-bromo-6-fluoro-1H-indole (available from Sinova, 33 mg). 1-(1-Methylethyl)-N-[2-(tetrahydro-2H-pyran-2-yl)-6-(4,4,6,6-tetramethyl-1,3,2-dioxaborinan-2-yl)-2H-indazol-4-yl]-1H-pyrazole-5-carboxamide (70 mg) in 1,4-dioxane (0.5 ml) was added followed by water (0.1 ml). The mixture was heated under microwave irradiation at 120° C. for 10 min. The mixture was passed through a silica cartridge which had been preconditioned with methanol, washed through with methanol, then dried under a stream of nitrogen. The residue was subjected to a DCM/water wash and then dried under a stream of nitrogen. The residue was dissolved in DMSO:methanol (1 ml, 1:1, v/v) and purified by MDAP (method A). Appropriate fractions were evaporated under a stream of nitrogen. The residues were dissolved in a minimum amount of methanol, a few drops of 2M HCl (aq) were added and the reactions were left to stand briefly at room temperature. The reactions were combined then passed through an aminopropyl cartridge preconditioned with methanol and dried. Purification was carried out using the following system: washed through with methanol dried under a stream of nitrogen wash dried under a stream of nitrogen The residue was dissolved in DMSO methanol (1 ml, 1:1, v/v) and purified by MDAP (method A) Appropriate fractions were evaporated under a stream of nitrogen The residues were dissolved in a minimum amount of methanol, a few drops of 2M HCl (aq) were added the reactions were left to stand briefly at room temperature dried Purification

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A microwave vial was charged with Solvias catalyst (8 mg), tripotassium phosphate (90 mg) and 4-bromo-6-fluoro-1H-indole (available from Sinova, 33 mg). 1-(1-Methylethyl)-N-[2-(tetrahydro-2H-pyran-2-yl)-6-(4,4,6,6-tetramethyl-1,3,2-dioxaborinan-2-yl)-2H-indazol-4-yl]-1H-pyrazole-5-carboxamide (70 mg) in 1,4-dioxane (0.5 ml) was added followed by water (0.1 ml). The mixture was heated under microwave irradiation at 120° C. for 10 min. The mixture was passed through a silica cartridge which had been preconditioned with methanol, washed through with methanol, then dried under a stream of nitrogen. The residue was subjected to a DCM/water wash and then dried under a stream of nitrogen. The residue was dissolved in DMSO:methanol (1 ml, 1:1, v/v) and purified by MDAP (method A). Appropriate fractions were evaporated under a stream of nitrogen. The residues were dissolved in a minimum amount of methanol, a few drops of 2M HCl (aq) were added and the reactions were left to stand briefly at room temperature. The reactions were combined then passed through an aminopropyl cartridge preconditioned with methanol and dried. Purification was carried out using the following system: washed through with methanol dried under a stream of nitrogen wash dried under a stream of nitrogen The residue was dissolved in DMSO methanol (1 ml, 1:1, v/v) and purified by MDAP (method A) Appropriate fractions were evaporated under a stream of nitrogen The residues were dissolved in a minimum amount of methanol, a few drops of 2M HCl (aq) were added the reactions were left to stand briefly at room temperature dried Purification

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

Procedure: Sodium hydride (299 mg, 7.48 mmol) was added to a stirred solution of 4-bromo-6-fluoro-1H-indole (800 mg, 3.74 mmol) in DMF (20 ml) that had been cooled in an ice bath to 0° C. and placed under nitrogen. The mixture was stirred for 5 mins before 4-nitrobenzenesulfonyl chloride (911 mg, 4.11 mmol) was added. The mixture was stirred at 0° C. for 1 hour. The resultant orange/brown solution was poured into stirring water (40 ml). The mixture was rapidly stirred for 30 mins. The resulting brown suspension was collected by filtration, washed with water and dried in a vacuum oven at 50° C. overnight to give a pale brown solid, which was purified by Flashmaster II, on a silica cartridge (100 g) using a gradient of ethylacetate and cyclohexane to afford the title compound as a white solid. was added The resultant orange/brown solution was poured The mixture was rapidly stirred for 30 mins The resulting brown suspension was collected by filtration washed with water dried in a vacuum oven at 50° C. overnight to give a pale brown solid, which was purified by Flashmaster II, on a silica cartridge (100 g)

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

Procedure: Sodium hydride (299 mg, 7.48 mmol) was added to a stirred solution of 4-bromo-6-fluoro-1H-indole (800 mg, 3.74 mmol) in DMF (20 ml) that had been cooled in an ice bath to 0° C. and placed under nitrogen. The mixture was stirred for 5 mins before 4-nitrobenzenesulfonyl chloride (911 mg, 4.11 mmol) was added. The mixture was stirred at 0° C. for 1 hour. The resultant orange/brown solution was poured into stirring water (40 ml). The mixture was rapidly stirred for 30 mins. The resulting brown suspension was collected by filtration, washed with water and dried in a vacuum oven at 50° C. overnight to give a pale brown solid, which was purified by Flashmaster II, on a silica cartridge (100 g) using a gradient of ethylacetate and cyclohexane to afford the title compound as a white solid. was added The resultant orange/brown solution was poured The mixture was rapidly stirred for 30 mins The resulting brown suspension was collected by filtration washed with water dried in a vacuum oven at 50° C. overnight to give a pale brown solid, which was purified by Flashmaster II, on a silica cartridge (100 g)

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

Procedure: To a solution of crude 1-[2-(2-bromo-4-fluoro-6-nitro-phenyl)-vinyl]-pyrrolidine (2.74 g) in tetrahydrofuran (25 ml) and methanol (25 ml) was added Raney nickel, 50% slurry in water, active catalyst (5.0 ml) followed by careful addition of hydrazine monohydrate (0.63 ml). After stirring for 24 hours the reaction mixture was filtered through celite and the filtrate reduced in vacuo. The residue was purified by flash chromatography to give 4-bromo-6-fluoro-1H-indole (0.80 g). was filtered through celite The residue was purified by flash chromatography

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

Procedure: Prepared according to the method used in the preparation of 4-bromo-1H-indole-6-sulfonic acid dimethylamide using 1-bromo-5-fluoro-2-methyl-3-nitro-benzene in place of 3-bromo-4-N,N-trimethyl-5-nitro-benzenesulfonamide. The title compound was obtained as a white solid (6.06 g, 33%). Prepared

Conditions: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 4-bromo-6-fluoro-1H-indole (2 g) in DMF (5 ml) was added sodium hydride (60% in mineral oil) (0.448 g). The reaction was stirred at 20° C. for 10 min. 4-Nitrobenzenesulfonyl chloride (2.278 g) was added and the reaction was stirred at 20° C. for 1 h. The mixture was poured onto water (100 ml), and extracted with DCM (50 ml) which was separated by hydrophobic frit. Purification by silica (2×100 g) on Flashmaster II using a gradient of DCM and cyclohexane gave the title compound as a pale yellow solid, 1.54 g. the reaction was stirred at 20° C. for 1 h The mixture was poured onto water (100 ml) extracted with DCM (50 ml) which was separated by hydrophobic frit Purification by silica (2×100 g) on Flashmaster II

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

Procedure: To a solution of 1-bromo-5-fluoro-2-methyl-3-nitrobenzene (4.69 g, 20 mmol) in 1,4-dioxane (25 mL) at RT was slowly added DMF dimethylacetal (13.3 mL) and pyrrolidine (1.7 mL). The solution was heated at 100° C. for 18 h, then concentrated in vacuo to give a dark residue. To the residue was added HOAc (30 mL) and iron powder (11 g, 200 mmol) then the mixture was heated to reflux for 1 h, cooled to RT, neutralized by addition of 50% aq. NaOH and extracted with EtOAc (2×200 mL). The combined organic extracts were dried (MgSO4), filtered and concentrated in vacuo. The residue was purified by SiO2 chromatography eluting with an EtOAc/petroleum ether gradient (5 to 30% EtOAc) to afford 1.16 g (27%) of 4-bromo-6-fluoro-1H-indole (224)—as brown solid: MS (ESI) m/z=213.9 [M+1]+. at RT concentrated in vacuo to give a dark residue the mixture was heated to reflux for 1 h cooled to RT extracted with EtOAc (2×200 mL) The combined organic extracts were dried (MgSO4) filtered concentrated in vacuo The residue was purified by SiO2 chromatography eluting with an EtOAc/petroleum ether gradient (5 to 30% EtOAc)

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A microwave vial was charged with Solvias catalyst (8 mg), tripotassium phosphate (90 mg) and 4-bromo-6-fluoro-1H-indole (available from Sinova, 33 mg). 1-(1-Methylethyl)-N-[2-(tetrahydro-2H-pyran-2-yl)-6-(4,4,6,6-tetramethyl-1,3,2-dioxaborinan-2-yl)-2H-indazol-4-yl]-1H-pyrazole-5-carboxamide (70 mg) in 1,4-dioxane (0.5 ml) was added followed by water (0.1 ml). The mixture was heated under microwave irradiation at 120° C. for 10 min. The mixture was passed through a silica cartridge which had been preconditioned with methanol, washed through with methanol, then dried under a stream of nitrogen. The residue was subjected to a DCM/water wash and then dried under a stream of nitrogen. The residue was dissolved in DMSO:methanol (1 ml, 1:1, v/v) and purified by MDAP (method A). Appropriate fractions were evaporated under a stream of nitrogen. The residues were dissolved in a minimum amount of methanol, a few drops of 2M HCl (aq) were added and the reactions were left to stand briefly at room temperature. The reactions were combined then passed through an aminopropyl cartridge preconditioned with methanol and dried. Purification was carried out using the following system: washed through with methanol dried under a stream of nitrogen wash dried under a stream of nitrogen The residue was dissolved in DMSO methanol (1 ml, 1:1, v/v) and purified by MDAP (method A) Appropriate fractions were evaporated under a stream of nitrogen The residues were dissolved in a minimum amount of methanol, a few drops of 2M HCl (aq) were added the reactions were left to stand briefly at room temperature dried Purification

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

Procedure: Sodium hydride (299 mg, 7.48 mmol) was added to a stirred solution of 4-bromo-6-fluoro-1H-indole (800 mg, 3.74 mmol) in DMF (20 ml) that had been cooled in an ice bath to 0° C. and placed under nitrogen. The mixture was stirred for 5 mins before 4-nitrobenzenesulfonyl chloride (911 mg, 4.11 mmol) was added. The mixture was stirred at 0° C. for 1 hour. The resultant orange/brown solution was poured into stirring water (40 ml). The mixture was rapidly stirred for 30 mins. The resulting brown suspension was collected by filtration, washed with water and dried in a vacuum oven at 50° C. overnight to give a pale brown solid, which was purified by Flashmaster II, on a silica cartridge (100 g) using a gradient of ethylacetate and cyclohexane to afford the title compound as a white solid. was added The resultant orange/brown solution was poured The mixture was rapidly stirred for 30 mins The resulting brown suspension was collected by filtration washed with water dried in a vacuum oven at 50° C. overnight to give a pale brown solid, which was purified by Flashmaster II, on a silica cartridge (100 g)

Conditions: temp:0.00; pressure:0.00; stir: