Hydrochloric Acid → HCID 10829121, compound

Participants

Reaction Steps

26.6 g of the resulting ethyl 2-(N-ethoxycarbonylamino)-3-fluoro-6-hydroxybenzoate was dissolved in 300 ml of dichloromethane under argon atmosphere, 20.5 ml of diisopropylethylamine and 9.0 ml of chloromethyl methyl ether were added under ice-cooling and the mixture was stirred at room temperature for 1.5 hours. Additional 20.5 ml of diisopropylethylamine and 9.0 ml of chloromethyl methyl ether were added and the mixture was stirred for 1.6 hours. Additional 5.1 ml of diisopropylethylamine and 2.2 ml of chloromethyl methyl ether were added and the mixture was stirred for 1 hour. An aqueous dilute solution of hydrochloric acid was added to the reaction solution, the mixture was extracted with dichloromethane, the organic layer was washed with water and an aqueous saturated solution of sodium chloride and dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure to give ethyl 2-(N-ethoxycarbonylamino)-3-fluoro-6-methoxymethoxybenzoate.

Provenance & Evidence