Diisopropylethylamine → 1-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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Reaction Steps

1-Ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid [2-(4-methyl-piperazin-1-yl)-2-oxo-ethyl]amide (50.0 mg) was prepared by following General Procedure F starting from 1-ethyl-2-(6-trifluoromethoxybenzo-thiazol-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 563; and 1H NMR (DMSO-d6, 400 MHz): δ 8.51-8.48 (1H, m), 8.12 (1H, br. s), 7.93 (1H, br. s), 7.74-7.71 (2H, m), 7.55 (1H, m), 7.37 (1H, m), 4.26 (2H, bs. s), 4.16-4.15 (2H, m), 3.51-3.50 (4H, m), 2.40-2.33 (4H, m), 2.24 (3H, s), 1.35-1.31 (3H, t), —NH proton signal was not observed.

Provenance & Evidence