Water → ethyl (4'-(2-[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethylamino]ethoxy}-2',6'-dimethylbiphenyl-4-yloxy)acetate

Participants

Reaction Conditions

Reaction Steps

A mixture of [4′-(2-methanesulfonyloxyethoxy)-2′,6′-di -methylbiphenyl-4-yloxy]acetate and 4-((1R,2S)-2-amino-1-hydroxypropyl)phenol (0.71 g) in N,N-dimethylformamide (10 mL) was stirred at 80° C. overnight. Water and ethyl acetate were added to the reaction mixture. The organic layer was separated, washed with water and brine, and dried over an hydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (eluent: methylene chloride/methanol=10/1) to afford ethyl (4′-{2-[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methyl-ethylamino]ethoxy}-2′,6′-dimethylbiphenyl-4-yloxy)acetate (0.47 g).

Provenance & Evidence