Sodium Hydroxide → 2-[2,4-Difluoro-3-[[2-fluoro-5-(3-fluorophenyl)-3-methyl-phenyl]methylamino]phenoxy]acetic acid

Participants

Reaction Steps

To a stirred solution of ethyl 2-[2,4-difluoro-3-[[2-fluoro-5-(3-fluorophenyl)-3-methyl-phenyl]methylamino]phenoxy]acetate (150 mg, 0.34 mmol, 1.0 eq) in THF (8 mL) was added NaOH (1M in water, 3.0 mL, 3.0 mmol) at room temperature. The reaction was stirred for 2 h, then the THF was removed in vacuo and the aqueous layer acidified to pH 4 by addition of 1M HCl. The resultant precipitate was collected by filtration and dried in vacuo to give the title compound (I(h)) (120 mg, 85%) as a white solid.

Provenance & Evidence