Ethyl Acetate → 4-((1R,2S)-2-(2-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethylamino}-1-hydroxypropyl)phenol

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Reaction Conditions

Reaction Steps

A mixture of 2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl methanesulfonate (1.20 g) and 4-((1R,2S)-2-amino-1-hydroxypropyl)phenol (1.76 g) in N,N-dimethylformamide (20 mL) was stirred at 80° C. for 5 hrs. Ethyl acetate was added to the reaction mixture. The organic layer was washed with water and brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (eluent:n-hexane/ethyl acetate=1/1, methylene chloride/methanol=9/1) to afford the title compound (0.24 g).

Provenance & Evidence