Potassium Hydroxide → 1,4-dimethyl-5-(2-phenoxy-phenyl)-1H-pyrrole-3-carboxylic acid (4-methanesulfonyl-phenyl)-amide

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Into a 50 mL round bottom flask was weighed 100 mg of 2-Bromo-1,3-dimethyl-1H-pyrrole-4-carboxylic acid [4-(sulfamoyl)phenyl]-amide (0.27 mmol), 230 mg of (2-phenoxy)phenylboronic acid, potassium hydroxide (30.2 mg, 0.54 mmol), and DAPCy (J. Org Chem (2004), 69: 4330-4335) (6.2 mg, 4 Mol %) and Ethanol/DMF (3 ml, 50:50) was added. The solution was heated at 100° C. overnight. The reaction was cooled and washed into a separatory funnel with ethyl acetate and water. The ethyl acetate washed with water and brine, then was dried (MgSO4), and concentrated in vacuo. The resulting residue was purified by flash chromatography (SiO2), eluting with EtOAc/Hex 0-80% to afford the title compounds as a white solid (10 mg, 8%); 1H NMR (DMSO-d6): δ 7.88 (d, J=9 Hz, 2H), 7.77 (d, J=9 Hz, 2H), 7.60 (s, 1H), 7.43-7.37 (m, 1H), 7.32-7.20 (m, 4H), 7.04 (d, J=9 Hz, 2H), 6.85 (d, J=8 Hz, 2H), 3.52 (s, 3H), 3.04 (s, 3H), 2.20 (s, 3H); MS (ESI) m/z 461 [M+H]+

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