2,3-difluorobenzenesulfonyl chloride

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

Procedure: 2-Amino-5-fluorobenzenesulfonamide (29 mg, 0.15 mmol) was dissolved in pyridine (1 ml) and 2,3-difluorophenylsulfonyl chloride (19 μl, 0.15 mmol) was added and the reaction stirred overnight. The solvent was removed in vacuo and the residue was purified by preparative HPLC (XTerra MS C8 column, acetonitrile/ammonium acetate buffer) to give the title compound (25 mg, 46%). The solvent was removed in vacuo the residue was purified by preparative HPLC (XTerra MS C8 column, acetonitrile/ammonium acetate buffer)

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

Procedure: 2-Amino-5-fluorobenzenesulfonamide (29 mg, 0.15 mmol) was dissolved in pyridine (1 ml) and 2,3-difluorophenylsulfonyl chloride (19 μl, 0.15 mmol) was added and the reaction stirred overnight. The solvent was removed in vacuo and the residue was purified by preparative HPLC (XTerra MS C8 column, acetonitrile/ammonium acetate buffer) to give the title compound (25 mg, 46%). The solvent was removed in vacuo the residue was purified by preparative HPLC (XTerra MS C8 column, acetonitrile/ammonium acetate buffer)

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

Procedure: 2-Aminobenzenesulfonamide (26 mg, 0.15 mmol) was dissolved in pyridine (1 ml) and 2,3-difluorophenylsulfonyl chloride (19 μl, 0.15 mmol) was added and the reaction stirred overnight. The solvent was removed in vacuo and the residue was purified by preparative HPLC (XTerra MS C8 column, acetonitrile/ammonium acetate buffer) to give the title compound (30 mg, 58%). The solvent was removed in vacuo the residue was purified by preparative HPLC (XTerra MS C8 column, acetonitrile/ammonium acetate buffer)

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

Procedure: The title compound (139 mg, 0.35 mmol) was prepared in two steps from 2,3-difluorobenzenesulfonyl chloride (1.0 g, 4.7 mmol) and 6-methoxypyridin-3-amine (642 mg, 5.2 mmol) in 1,4-dioxane at 100° C.; followed by 2-methylbenzyl amine (425 uL, 3.4 mmol) in MeCN (3 mL) at 180° C. in a Biotage Initiator microwave reactor using the methods of (IntB1).

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

Procedure: The title compound (139 mg, 0.32 mmol) was prepared in two steps from 2,3-difluorobenzenesulfonyl chloride (1.0 g, 4.7 mmol) and 6-methoxypyridin-3-amine (642 mg, 5.2 mmol) in 1,4-dioxane at 100° C.; followed by 2-chloro-6-fluorobenzyl amine (547 mg, 3.4 mmol) in MeCN (3 mL) at 180° C. in a Biotage Initiator microwave reactor using the methods of (IntB1).