Methanol → 5-(5-Methyl-3-pyridin-2-yl-isoxazol-4-ylmethoxy)-pyridine-2-carboxylic acid

Participants

Reaction Steps

To a solution of 5-(5-methyl-3-pyridin-2-yl-isoxazol-4-ylmethoxy)-pyridine-2-carboxylic acid methyl ester (56 mg, 0.17 mmol) in THF (0.6 mL) was added a solution of lithium hydroxide monohydrate (15 mg, 0.34 mmol) in water (0.6 mL) followed by methanol (0.2 mL) and the resulting mixture stirred at room temperature for 2 h. The mixture was then evaporated and acidified with HCl (1 N) and the mixture cooled to 0° C. for 30 min. A solid formed which was filtered off, washed with water and dried to afford the title compound (41 mg, 76%) which was obtained as a white solid. MS: m/e=310.3 [M−H]−.

Provenance & Evidence