Benzenesulfonyl chloride → HCID 59349423, compound

Participants

Reaction Steps

N5-(1H-Benzo[d]imidazol-2-yl)-N4-(2-methyl-4-(piperazin-1-yl)phenyl)-1H-imidazole-4,5-dicarboxamide (1 equivalent), dichloromethane, benzenesulfonyl chloride (1.5 equiv), and DIEA (1.5 equiv.) were added and stirred at room temperature. After 1 hour, LC-MS indicated the reaction was complete. The reaction mixture was evaporated under reduced pressure. The resulting crude product was purified by reverse phase HPLC (aqueous ammonium acetate/acetonitrile to give N5-1H-benzimidazol-2-yl-N4-{2-methyl-4-[4-(phenylsulfonyl)piperazin-1-yl]phenyl}-1H-imidazole-4,5-dicarboxamide in 43% yield. 1H-NMR (400 MHz, DMSO-d6): δ 10.9 (s, br, 1H), 8.36 (s, 1H), 7.80 (m, 2H), 7.73-7.64 (m, 4), 7.43 (m, 2H), 7.33 (m, br, 1H), 6.97 (m, br, 2H), 3.31 (s, br, 4H), 3.09 (s, br, 4H). 2.24 (s, 3H). MS (EI): 585 (MH+).

Provenance & Evidence