反应详情

Under argon atmosphere, to a solution of 1-(4-chlorophenyl)-5-iodo-1H-pyrazol-3-ylamine (35 mg) in 1,2-dimethoxyethane (0.7 ml) were sequentially added 2-[3-fluoro-5-((R)-2,2,2-trifluoro-1-methylethoxymethyl)phenyl]-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane (46 mg) prepared according to the same procedures as Preparation 15, a 2M aqueous solution of sodium carbonate (0.35 ml), tricyclohexylphosphine (6.1 mg) and palladium (II) acetate (2.5 mg) at room temperature, and the mixture was stirred at 100° C. for 2 hours. This reaction mixture was cooled to room temperature, filtered through Celite, was subjected to elution with ethyl acetate. The filtrate was dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The resulting residue was purified by silica gel thin-layer chromatography (eluent: n-hexane/ethyl acetate=1/1) to give the titled compound.

1. customprepared
2. customaccording to the same procedures as Preparation 15
3. filtrationfiltered through Celite
4. washwas subjected to elution with ethyl acetate
5. dry with materialThe filtrate was dried over anhydrous magnesium sulfate
6. concentrationconcentrated under reduced pressure
7. customThe resulting residue was purified by silica gel thin-layer chromatography (eluent: n-hexane/ethyl acetate=1/1)