反应详情

温度

120 °C

Methyl 2-((S)-6-((R)-4-bromo-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate [intermediate 1, step 3] (32 mg), 2-(2,6-dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (42 mg), [1,1′-bis(diphenylphosphino)-ferrocene]-dichloropalladium-(II) (6 mg), 1,1′-bis(diphenylphosphino)-ferrocene (4 mg) and caesium carbonate (50 mg) are suspended in toluene (2 mL) and degassed for 5 minutes with a flow of nitrogen. The mixture is heated under microwave irradiation for 90 minutes at 120° C. The mixture is diluted with ethyl acetate, washed with water, the organic phase dried and the solvent removed under vacuum. The residue is purified by chromatography on silica gel (cyclohexane/ethyl acetate 100:0→50:50) to give the title compound (9 mg). LC (method 19): tR=1.38 min; Mass spectrum: m/z=583 [M+H]+.

1. customdegassed for 5 minutes with a flow of nitrogen
2. additionThe mixture is diluted with ethyl acetate
3. washwashed with water
4. customthe organic phase dried
5. customthe solvent removed under vacuum
6. customThe residue is purified by chromatography on silica gel (cyclohexane/ethyl acetate 100:0→50:50)