反应详情

Tetrabutylammonium fluoride (1 M solution in tetrahydrofuran, 0.094 mL, 0.094 mmol) was added to a solution of (4′-{1-ethyl-1-[3-methyl-4-(1-trimethylsilanyloxy-cyclopentylethynyl)-phenyl]-propyl}-2′-methyl-biphenyl-4-yl)acetic acid methyl ester (Example 52-(1); 36.5 mg, 0.063 mmol) in tetrahydrofuran (3 mL), and the mixture was stirred at room temperature for two hours. The reaction mixture was then poured into water, followed by extraction with dichloromethane. The organic layer was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=4:1) to give the target compound as a colorless oil (25 mg, 78%).

1. extractionfollowed by extraction with dichloromethane
2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
3. filtrationfiltered
4. concentrationconcentrated under reduced pressure
5. customThe resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=4:1)