Water → 5-(3-chloro-4-cyanophenoxy)-N-(9-ethyl-9H-carbazol-3-yl)-3-hydroxy-3-methylpentanamide

참여 물질

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To a solution of the compound obtained in Step 1 (348 mg, 1.02 mmol) and 2-chloro-4-fluorobenzonitrile (159 mg, 1.02 mmol) in THF (10 mL) was added potassium t-butoxide (287 mg, 2.56 mmol), and the mixture was stirred at room temperature for 14 hr. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 10 to 100% ethyl acetate/hexane) to give the title compound (236 mg, 0.496 mmol, 48.5%) as a white powder.

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