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温度

0 °C

Ethyl 2-(3,4,5-trimethoxyphenyl)benzoate (655 mg) was dissolved in THF (20 mL), and to the solution lithium aluminum hydride (80 mg) was added at 0° C. under an argon atmosphere. The mixture was stirred at 0° C. for 1 hour as it is. A small amount of water and then sodium sulfate were added to the reaction mixture, and the reaction mixture was filtered through celite. The filtrate was concentrated under reduced pressure, and the resultant crude crystals were recrystallized from ethyl acetate-hexane to obtain the title compound.

1. filtrationthe reaction mixture was filtered through celite
2. concentrationThe filtrate was concentrated under reduced pressure
3. customthe resultant crude crystals were recrystallized from ethyl acetate-hexane