4-bromo-2-fluorobenzenesulfonamide

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

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

Procedure: Prepared according to the method described in Example 12b) from 4-[(2S,3R)-5-(pyridin-3-yl)-3-hydroxypent-2-yloxy]benzeneboronic acid (0.20 g, Example 33), 4-bromo-2-fluorophenylsulfonic acid amide (0.20 g), ethanol (3 ml), 2M aqueous sodium carbonate (1.0 ml) and tetrakis(triphenylphosphine)palladium (0) (0.03 g) with heating at 90° C. for 3 hours. After work-up, the residue was purified by normal-phase HPLC eluting with a gradient of 0-25% ethanol in dichloromethane, followed by recrystalisation from aqueous ethanol, to give the title compound as a solid (0.11 g). Prepared After work-up, the residue was purified by normal-phase HPLC eluting with a gradient of 0-25% ethanol in dichloromethane followed by recrystalisation from aqueous ethanol

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

Procedure: Prepared according to the method described in Example 12b) from 4-[(2S,3R)-5-(pyridin-3-yl)-3-hydroxypent-2-yloxy]benzeneboronic acid (0.20 g, Example 33), 4-bromo-2-fluorophenylsulfonic acid amide (0.20 g), ethanol (3 ml), 2M aqueous sodium carbonate (1.0 ml) and tetrakis(triphenylphosphine)palladium (0) (0.03 g) with heating at 90° C. for 3 hours. After work-up, the residue was purified by normal-phase HPLC eluting with a gradient of 0-25% ethanol in dichloromethane, followed by recrystalisation from aqueous ethanol, to give the title compound as a solid (0.11 g). Prepared After work-up, the residue was purified by normal-phase HPLC eluting with a gradient of 0-25% ethanol in dichloromethane followed by recrystalisation from aqueous ethanol

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

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

Procedure: To a ammonium hydroxide (28%, 80 ml) was added a solution of 4-bromo-2-fluorobenzenesulfonyl chloride (10 g) in dichloromethane (80 ml) dropwise for 1 hour at approximately 0° C. The reaction mixture was stirred vigorously for an additional 2 hours at the same temperature. The phases were separated. The aqueous phase was washed with dichloromethane. The combined organic extracts were washed with brine, dried over sodium sulfate and evaporated to give 4-bromo-2-fluorobenzenesulfonamide (8.0 g). The phases were separated The aqueous phase was washed with dichloromethane The combined organic extracts were washed with brine dried over sodium sulfate evaporated

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

Procedure: To an ammonium hydroxide (28%, 80 ml) was added a solution of 4-bromo-2-fluorobenzenesulfonyl chloride (10 g) in dichloromethane (80 ml) dropwise for 1 hour at approximately 0° C. The reaction mixture was stirred vigorously for an additional 2 hours at the same temperature. The phases were separated. The aqueous phase was washed with dichloromethane. The combined organic extracts were washed with brine, dried over sodium sulfate and evaporated to give 4-bromo-2-fluorobenzenesulfonamide (8.0 g). The phases were separated The aqueous phase was washed with dichloromethane The combined organic extracts were washed with brine dried over sodium sulfate evaporated

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

Procedure: Prepared according to the method described in Example 12b) from 4-[(2S,3R)-5-(pyridin-3-yl)-3-hydroxypent-2-yloxy]benzeneboronic acid (0.20 g, Example 33), 4-bromo-2-fluorophenylsulfonic acid amide (0.20 g), ethanol (3 ml), 2M aqueous sodium carbonate (1.0 ml) and tetrakis(triphenylphosphine)palladium (0) (0.03 g) with heating at 90° C. for 3 hours. After work-up, the residue was purified by normal-phase HPLC eluting with a gradient of 0-25% ethanol in dichloromethane, followed by recrystalisation from aqueous ethanol, to give the title compound as a solid (0.11 g). Prepared After work-up, the residue was purified by normal-phase HPLC eluting with a gradient of 0-25% ethanol in dichloromethane followed by recrystalisation from aqueous ethanol