Acetic Acid → HCID 67470563, compound

Participants

Reaction Steps

2-ethylbutanoic acid 5-{(R)-(4-{amino[2,2-dimethylpropoxycarbonylimino]methyl}phenylamino)-[2-fluoro-3-(2-hydroxyethoxy)-5-methoxyphenyl]methyl}-2-pyrimidin-2-yl-2H-[1,2,4]triazol-3-yloxymethyl ester (37 mg), DMAP (0.6 mg), and triethylamine (0.056 mL) were dissolved in DMF (2.5 mL) and dichloromethane (2.5 mL). To the solution, a mixture of TFFH (26.5 mg), acetic acid (0.00576 mL), and dichloromethane (3 mL) was slowly added, and the resulting mixture was stirred at room temperature for 3 hours. After concentrating the reaction mixture under reduced pressure, ice, THF, saturated aqueous sodium hydrogen carbonate solution, and saturated aqueous ammonium chloride solution were added to the residue obtained, and the resulting mixture was extracted with the mixture of THF and ethyl acetate. The organic layer was washed with saturated aqueous ammonium chloride solution and dried over anhydrous magnesium sulfate. The resulting mixture was filtered, and the filtrate obtained was concentrated under reduced pressure. The residue obtained was crudely purified by NAM silica gel column chromatography (mixed solvent of methanol-ethyl acetate) to obtain a crudely purified product of the captioned compound.

Provenance & Evidence