反应详情

温度

55 °C

Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-bromophenyl)acetate (Example 46 step C; 40 mg, 0.077 mmol), K2CO3 (32 mg, 0.23 mmol) and 4-(methylsulfonyl)phenylboronic acid (23 mg, 0.12 mmol) were diluted with dioxane (1 mL)/water (300 μL) followed by the addition of Pd(PPh3)4 (8.9 mg, 0.0077 mmol). The reaction was purged with nitrogen and stirred at 55° C. for 12 hours. The reaction was cooled and concentrated. The residue was taken up in minimal DCM and purified by silica gel chromatography, eluting with hexanes:ethyl acetate (1:1) to yield ethyl 2-(6-(4-(4-chlorophenethylcarbamoyl)phenoxy)-4′-(methylsulfonyl)biphenyl-3-yl)acetate (20 mg, 44% yield) as a clear oil.

1. customThe reaction was purged with nitrogen
2. temperatureThe reaction was cooled
3. concentrationconcentrated
4. custompurified by silica gel chromatography
5. washeluting with hexanes:ethyl acetate (1:1)