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0 °C

To a solution of methyl 4-{[5-(4-fluorophenyl)-1-methyl-1H-pyrazol-4-yl]methoxy}benzoate (920 mg, 2.70 mmol) in tetrahydrofuran (10 mL) was added lithium aluminum hydride (200 mg, 5.27 mmol) at 0° C., and the mixture was stirred at 0° C. for 1 hr. Sodium sulfate decahydrate (1.0 g) was added to the reaction mixture, and the mixture was allowed to warm to room temperature and stirred for 30 min. The insoluble material was filtered off, and the filtrate was concentrated to give the title compound (680 mg, yield 80%) as a yellow oil.

1. temperatureto warm to room temperature
2. stirringstirred for 30 min
3. filtrationThe insoluble material was filtered off
4. concentrationthe filtrate was concentrated