Potassium Carbonate → 4-(2-Acetoxy-ethoxy)-3-bromo-5-fluoro-benzoic Acid Methyl Ester

Participants

Reaction Steps

3-Bromo-5-fluoro-4-hydroxybenzoic acid methyl ester (500 mg, 2.01 mmol; T. Kline et al., J. Med. Chem. 45 (2002), 3112-3129), potassium carbonate (971 mg, 7.03 mmol) and 2-bromoethyl acetate (503 mg, 3.01 mmol) were reacted in DMF (5 ml) at room temperature for 72 h. Then the mixture was partitioned between EA and 2 N hydrochloric acid, and the combined organic extracts were dried over sodium chloride, decanted and evaporated to dryness. The raw material was purified by silica gel chromatography (EA/HEP gradient 0:1 to 4:6) to yield the title compound.

Provenance & Evidence