Acetyl chloride → HCID 15670345, compound

Participants

Reaction Steps

3-[(3-Mercapto-2-benzylbutanoyl)amino]benzoic acid (compound of Example 194) (1.7 g) is suspended in dichloromethane (17 ml), and thereto is added triethylamine (0.52 g)with stirring under ice cooling. To the mixture are further added dropwise acetyl chloride (0.51 g) and triethylamine (0.52 g) simultaneously, and the mixture is stirred at room temperature for one hour. The reaction mixture is diluted with dichloromethane and washed with 10% hydrochloric acid and saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate, and then dichloromethane is distilled off under reduced pressure. The residue is dissolved in acetonitrile and purified by a medium pressure column chromatography with CHP-20P (eluant, water-acetonitrile). The fractions containing the desired compound are collected and concentrated into dryness under reduced pressure to give the title compound (0.6 g).

Provenance & Evidence