Acetic Anhydride → HCID 86612093, compound

Participants

Reaction Steps

200 mg (0.46 mmol) of the compound obtained in Example 1 was dissolved in 2 ml of dichloromethane, to which 87 μl (0.93 mmol) of acetic anhydride, 0.13 ml (0.93 mmol) of triethylamine and 17 mg (0.14 mmol) of 4-dimethylaminopyridine were added in that order. The reaction was stirred for 2 hours at room temperature, 10 ml of saturated NaHCO3 solution was added and extraction was performed with 30 ml of dichloromethane. The extract was washed with brine and dried over anhydrous MgSO4, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1), to give 211 mg (yield: 97%) of the target compound.

Provenance & Evidence