Ethylenediamine → 1-[4-(2,4-bis-trifluoromethyl-benzoylamino)-2-trifluoromethyl-phenyl]-2,5-dimethyl-1H-pyrrole-3-carboxylic acid (4-methanesulfonyl-phenyl)-amide

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1-[4-Bromo-2-(trifluoromethyl)phenyl]-2,5-dimethyl-1H-pyrrole-3-carboxylic acid [4-(methanesulfonyl)phenyl]-amide was prepared as described in Example 1G. Into an oven-dried 1 dram vial was added 1-[4-Bromo-2-(trifluoromethyl)phenyl]-2,5-dimethyl-1H-pyrrole-3-carboxylic acid [4-(methanesulfonyl)phenyl]-amide (26 mg, 50 μmol), 2,4-Bis(Trifluoromethyl)benzamide (13 mg, μmol) Copper (1) Iodide (50 mg, 260 μmol), K2CO3 (50 mg, 360 μmol), N,N′-Dimethylenediamine (9 mg, 100 μmol), and 0.4 mL of Toluene. The vial was sealed and stirred for 18 h at 110° C. The reaction was worked up by addition of a 1:1 solution of 2.0 M NaOH: 0.5M EDTA (1 ml) and Ethyl Acetate (1 ml). The vial was vortexed and the Ethyl Acetate was removed and dried in Vacuo. The crude material was purified by reverse-phase chromatography (C18 column), eluting with 0.05% TFA in MeCN/H2O (30:70 to 90:10) to yield the title compound (6.9 mg, 10%) as a white solid. 1H-NMR (DMSO-d6): δ11.24 (1H, s), 9.78 (1H, s), 8.28 (1H, d, J=2 Hz), 8.22 (1H, d, J=8 Hz), 8.19 (1H, s), 8.02 (4H, m), 7.76 (2H, d, J=9 Hz), 7.44 (2H, d, J=9 Hz), 6.59 (1H, s), 3.09 (3H, s), 2.10 (3H, s), 1.84 (3H, s); MS (ESI): 692 (MH+).

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