Cesium carbonate → 3-Fluoro-4-{[(1S*,2R*)-2-(1-methyl-1H-pyrazol-5-yl)cyclopentyl]oxy}-N-(1,3-thiazol-2-yl)benzenesulfonamide

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Reaction Steps

A solution of the 3-fluoro-4-{[(1S*,2R*)-2-(1-methyl-1H-pyrazol-5-yl)cyclopentyl]oxy}benzenesulfonamide (0.07 g, 0.21 mmol) prepared in Example 16c, 2-bromothiazole (0.07 g, 0.41 mmol), copper iodide (0.01 g, 0.04 mmol), trans-N,N′-dimethylcyclohexane-1,2-diamine (0.01 g, 0.09 mmol) and cesium carbonate (0.20 g, 0.62 mmol) in DMF (2.0 mL) was stirred at 120° C. for 20 hours under the nitrogen atmosphere. After allowing to cool, the reaction solution was vacuum concentrated, and the residue was purified with HPLC to yield the title compound (75 mg, 86%) as a colorless solid.

Provenance & Evidence