反应详情

温度

50 °C

To a mixture of methyl 2-[2-[[6-[(5-methyl-2-phenyl-4-thiazolyl)methoxy]-3-pyridyl]methoxy]-phenyl]acetate (1.05 g), tetrahydrofuran (5 mL) and methanol (5 mL) was added a 1N aqueous sodium hydroxide solution (5 mL) and the mixture was stirred at 50° C. for 2 hrs. 1N Hydrochloric acid (5 mL) and water were added to the reaction mixture, and the precipitated crystals were collected by filtration and dried with air to give crystals (0.91 g, 88%) of 2-[2-[[6-[(5-methyl-2-phenyl-4-thiazolyl)methoxy]-3-pyridyl]methoxy]phenyl]acetic acid. Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 173-174° C.

1. filtrationthe precipitated crystals were collected by filtration
2. customdried with air