Propionic Acid → HCID 178460281, compound

Participants

Reaction Steps

Triethylamine (108 μl, 0.775 mmol), propionic acid (32 μl, 0.429 mmol), 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride (83 mg, 0.433 mmol) and 1-hydroxybenzotriazole (58 mg, 0.429 mmol) were added in that order to a dimethylformamide solution (2 ml) of the cis-4-[(4,7-dimethyl-1H-indazol-5-yl)oxy]cyclohexanamine (100 mg, 0.386 mmol) obtained in Example 658, and the resulting mixture was stirred at room temperature for 20 hours. The reaction was terminated by the addition of water, followed by extraction with ethyl acetate-toluene (1:1). The extract solution was washed with a saturated aqueous sodium chloride solution, dried over sodium sulfate, and then distilled under reduced pressure to remove the solvent, whereby a crude product was obtained. The crude product was purified by a silica gel chromatography (eluent: chloroform/methanol=100:2) to obtain cis-N-{4-[(4,7-dimethyl-1H-indazol-5-yl)oxy]cyclohexyl}propanamide (134 mg, 100%).

Provenance & Evidence