反应详情

5-Cyclohexyl-6-(2,2,2-trifluoroethoxy)-3-pyridinecarboxylic acid methyl ester (95 mg, 299 μmol) was combined with THF (4 mL) and water (2 mL) to give a light yellow solution. Lithium hydroxide hydrate (25.1 mg, 599 μmol) was added under argon. The reaction mixture stirred at ambient temperature overnight, subsequently poured into 6 mL 2 M HCl and extracted with isopropyl acetate (2×60 mL). The organic layers were combined, dried with Na2SO4 and concentrated in vacuo to give the title compound (92 mg, quant.) as white solid; MS (ESI) 302.0 (M−H)−.

1. customto give a light yellow solution
2. extractionextracted with isopropyl acetate (2×60 mL)
3. dry with materialdried with Na2SO4
4. concentrationconcentrated in vacuo