Methanol → HCID 68431773, compound

Participants

Reaction Steps

To a tetrahydrofuran solution (1 mL) of 4-bromo-5-(4-fluorobenzyloxy)-2-{4-[(2-tetrahydropyranyl)oxy]phenyl}-2H-pyridazin-3-one (136 mg, 0.29 mmol), 2.66 N n-butyl lithium hexane-solution (0.13 mL, 0.35 mmol) was added at −78° C. and stirred for 30 minutes. Methanol was added to the reaction liquid, warmed up to room temperature and ethyl acetate was added. Thus obtained organic layer was washed with 5% aqueous citric acid solution and saturated brine, and dried over anhydrous magnesium sulfate. Concentrating the solvent under reduced pressure, the resulting residue was purified on silica gel column chromatography (C-300; ethyl acetate:hexane=1:1) to provide the title compound (74.2 mg, 65.3%).

Provenance & Evidence