Hydrochloric Acid → HCID 86731349, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of N-((2S)-1-((2-(3-bromo-4-ethoxy-5-fluorophenyl)-1,3-benzoxazol-6-yl)oxy)propan-2-yl)acetamide (1.50 g) and toluene (10 mL) were added tributyl(1-ethoxyvinyl)stannane (2.25 mL) and tetrakis(triphenylphosphine)palladium(0) (192 mg), and the mixture was stirred at 110° C. for 5 hr under an argon atmosphere. To the reaction mixture was added 0.5N hydrochloric acid, and the mixture was stirred at room temperature for 1 hr, neutralized with saturated aqueous sodium hydrogen carbonate solution, and extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was evaporated. The obtained solid was washed with diethyl ether-hexane to give the title compound (1.22 g).

Provenance & Evidence