5-Methoxyindole-2-carboxylic acid → N-({4-Chloro-3-[(3-chloro-5-cyanophenyl)oxy]phenyl}methyl)-5-(methyloxy)-1H-indole-2-carboxamide

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N-({4-Chloro-3-[(3-chloro-5-cyanophenyl)oxy]phenyl}methyl)-5-(methyloxy)-1H-indole-2-carboxamide was prepared in a similar manner as described herein from 3-{[5-(aminomethyl)-2-chlorophenyl]oxy}-5-chlorobenzonitrile (0.025 g, 0.085 mmol), 5-(methyloxy)-1H-indole-2-carboxylic acid, (0.025 g, 0.13 mmol), HATU (0.05 g, 0.13 mmol), DIPEA (0.025 mL, 0.13 mmol) and DMF (1 mL). The crude material was purified by Reverse-Phase HPLC (water/acetonitrile with 0.1% TFA). The desired fractions were neutralized and extracted with EtOAc. The organic extracts were combined, dried over Na2SO4, filtered and evaporated to afford the title compound (0.015 g, 36%) as a white solid. 1H NMR (400 MHz, DMSO-d6): δ ppm 11.42 (d, 1H), 8.98 (t, 1H), 7.76 (d, 1H), 7.59 (d, 1H), 7.43 (dd, 1H), 7.35 (d, 1H), 7.25-7.28 (m, 2H), 7.23 (d, 1H), 7.03 (dd, 2H), 6.80 (dd, 1H), 4.48 (d, 2H), 3.72 (s, 3H). MS: m/z 466.1 (M+1).

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