Sodium Hydroxide → 5-[Bis-(2,2,2-trifluoro-ethyl)-amino]-6-cyclopropylmethoxy-pyridine-2-carboxylic acid

Participants

Reaction Steps

A solution of 5-(bis(2,2,2-trifluoroethyl)amino)-6-(cyclopropylmethoxy)-pyridine-2-carboxylic acid methyl ester (60 mg, 0.16 mmol) and sodium hydroxide (9 mg, 0.23 mmol) in ethanol (20 mL) was reacted for 2 h at 90° C. The reaction mixture was concentrated under reduced pressure, dissolved in water and extracted with ethyl acetate (10 mL). The pH of the aqueous layer was adjusted to 2 by addition of 1 N hydrochloric acid; the aqueous layer was extracted with ethyl acetate (3×10 mL), washed with brine (2×10 mL), dried over Na2SO4 and evaporated to dryness (0.03 g, crude). The crude product was used for next step without further purification; MS: m/e=373.1 [M+H]+.

Provenance & Evidence