Ethyl Acetate → HCID 68756369, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-[(thiophen-3-yl-methyl)amino]-5-trifluoromethylbenzonitrile 1C (1.42 g, 5.04 mmol) in anhydrous tetrahydrofuran (THF) (10 mL) and anhydrous N,N-dimethylformamide (DMF) (10 mL) at 0° C. was added potassium tert-butoxide (1.13 g, 10.1 mmol). The reaction mixture was stirred at 0° C. for 5 minutes and tert-butyl bromoacetate 1D (1.47 g, 7.54 mmol) was added. The reaction mixture was stirred at room temperature overnight. Ethyl acetate (100 mL) was added and the organic layer was washed with 1 N hydrochloric acid and brine. The organic layer was dried over sodium sulfate. The organic solvent was evaporated under reduced pressure. The crude product was purified by flash column chromatography to provide 3-amino-1-thiophen-3-yl-methyl-5-trifluoromethyl-1H-indole-2-carboxylic acid tert-butyl ester 1E (1.74 g, 4.39 mmol).

Provenance & Evidence