反应详情

温度

125 °C

In a 10 ml microwave vial, 4-bromo-1-methyl-1H-pyrrole-2-carboxamide (82.5 mg, 406 μmol, Eq: 1.00), [prepared in Example 12, Step 1], 2-(6-tert-butyl-3-methyl-1-oxo-3,4-dihydrophthalazin-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate (200 mg, 406 μmol, Eq: 1.00), X-phos (19.4 mg, 40.6 μmol, Eq: 0.10), and potassium phosphate tribasic (259 mg, 1.22 mmol, Eq: 3.00) were combined with 1,4-dioxane (5 ml) and water (0.5 ml) to give a dark brown suspension. The reaction mixture was stirred while purging with argon for 10 min. The reaction mixture was heated at 125° C. in the microwave for 30 min. The reaction mixture was diluted with 50 mL of dichloromethane and dried (MgSO4). Concentrated in vacuo. The crude material was purified by flash chromatography (silica, 20%-100% ethyl acetate/hexanes gradient) to give 2-(6-tert-butyl-3-methyl-1-oxo-3,4-dihydrophthalazin-2(1H)-yl)-6-(5-carbamoyl-1-methyl-1H-pyrrol-3-yl)benzyl acetate (31 mg, 16%): 1H NMR (300 MHz, CHLOROFORM-d) δ ppm 1.37 (s, 9H) 1.98 (s, 3H) 2.68 (s, 3H) 3.99 (s, 2H) 5.28 (s, 2H) 6.72 (d, J=1.89 Hz, 1H) 6.84-6.94 (m, 1H) 7.23 (d, J=1.51 Hz, 1H) 7.27-7.52 (m, 5H) 7.61 (s, 1H) 8.04 (d, J=7.93 Hz, 1H).

1. customto give a dark brown suspension
2. customwhile purging with argon for 10 min
3. additionThe reaction mixture was diluted with 50 mL of dichloromethane
4. dry with materialdried (MgSO4)
5. concentrationConcentrated in vacuo
6. customThe crude material was purified by flash chromatography (silica, 20%-100% ethyl acetate/hexanes gradient)