Diisopropylethylamine → 1-(2-Methoxy-ethyl)-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid [2-(4-methyl-piperazin-1-yl)-2-oxo-ethyl]amide

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1-(2-Methoxy-ethyl)-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid [2-(4-methyl-piperazin-1-yl)-2-oxo-ethyl]amide (45.0 mg) was prepared by following General Procedure F starting from 1-(2-methoxy-ethyl)-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (100.0 mg), 2-amino-1-(4-methyl-piperazin-1-yl)ethanone (40.0 mg), HBTU (190.0 mg) and DIEA (0.2 mL) in DMF (1.0 mL). LCMS: m/z 593; and 1H NMR (DMSO-d6, 400 MHz): δ 8.49-8.46 (1H, m), 8.09 (1H, br. s), 7.95-7.93 (2H, m), 7.74 (1H, m), 7.53-7.50 (1H, m), 7.37-7.34 (1H, m), 4.37-4.36 (2H, m), 4.16-4.14 (2H, d), 3.74-3.71 (2H, t), 3.48-3.46 (4H, m), 3.24 (3H, s), 2.36-2.28 (4H, m), 2.20 (3H, s), —NH proton signal was not observed.

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