Water → 4-{4-[4-(3-Sulfamoyl-propoxy)-indol-1-yl]-pyrimidin-2-ylamino}-cyclohexanecarboxylic acid ethyl ester

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Reaction Steps

4-Aminocyclohexane carboxylic acid ethyl ester (588.4 mg, 3.44 mmol) was dissolved in NMP (5 mL) and treated with DIEA (0.993 mL, 5.7 mmol) and the reaction mixture allowed to stir at RT for 5 min. 3-[1-(2-Butylsulfinyl-pyrimidin-4-yl)-1H-indol-4-yloxy]-propane-1-sulfonic acid amide (500 mg, 1.14 mmol) was then added, and the reaction mixture heated to 120° C. for 1 h. The reaction was then allowed to cool to RT, water was added, the mixture was sonicated, filtered, and the solid dried in vacuo to yield 4-{4-[4-(3-sulfamoyl-propoxy)-indol-1-yl]-pyrimidin-2-ylamino}-cyclohexanecarboxylic acid ethyl ester (Compound 318).

Provenance & Evidence