反应详情

温度

75 °C

To a mixture of toluene (12 mL) and 1,4-dioxane (2.5 mL) were added ethyl ((1S)-5-{3-[(2-chloro-5-methyl-4-pyrimidinyl)(methyl)amino]propoxy}-2,3-dihydro-1H-inden-1-yl)acetate (Example 342, 205 mg, 0.49 mmol), 4-ethylphenyl boronic acid (294 mg, 1.96 mmol), and PdCl2(dppf).CH2Cl2 (35.9 mg, 0.05 mmol). A flow of argon was passed through the reaction mixture for 30 min, then Na2CO3 (2.45 mL, 4.91 mmol, 2 M aqueous solution) was added, and the reaction was stirred at 75° C. for 18 h. After cooling to rt, the reaction mixture was diluted with EtOAc, and washed with a saturated aqueous solution of NaHCO3. The organic layer was then dried (Na2SO4), filtered, and then concentrated under reduced pressure. The residue was purified by silica gel flash chromatography (4:1 hexanes/EtOAc) to provide the product (140 mg, 59%) as a colorless oil. 1H NMR (400 MHz, CDCl3) δ 1.26-1.32 (m, 6H), 1.73-1.80 (m, 1H), 2.16-2.19 (m, 2H), 2.33 (s, 3H), 2.35-2.42 (m, 2H), 2.67-2.88 (m, 5H), 3.22 (s, 3H), 3.51-3.55 (m, 1H), 3.79 (t, 2H), 4.00 (t, 2H), 4.19 (q, 2H), 6.69 (d, 1H), 6.75 (s, 1H), 7.04 (d, 1H), 7.26 (d, 2H), 8.08 (s, 1H), 8.30 (d, 2H).

1. temperatureAfter cooling to rt
2. washwashed with a saturated aqueous solution of NaHCO3
3. dry with materialThe organic layer was then dried (Na2SO4)
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified by silica gel flash chromatography (4:1 hexanes/EtOAc)