反应详情

温度

100 °C

Pd2(dba)3 (10 mg, 0.01 mmol) and X-Phos (11 mg, 0.02 mmol) was added to the mixture of 5-bromo-2-(4-fluorophenyl)-N-methyl-6-(2-oxooxazolidin-3-yl)benzofuran-3-carboxamide (100 mg, 0.23 mmol), 11-fluoro-2-(trimethylstannyl)-6H-pyrido[2′,3′:5,6][1,3]oxazino[3,4-a]indole (140 mg, 0.35 mmol) in dioxane/H2O (4 mL/0.2 mL) under N2. Then the reaction mixture was heated to 100° C. for 1 hour and filtered. The resulting residue was extracted with EtOAc. The combined organic phase was dried over Na2SO4 and concentrated in vacuo. The resulting residue was purified using prep-TLC (petroleum ether:EtOAc=1:2) to provide 5-(11-fluoro-6H-pyrido[2′,3′:5,6][1,3]oxazino[3,4-a]indol-2-yl)-2-(4-fluorophenyl)-N-methyl-6-(2-oxooxazolidin-3-yl)benzofuran-3-carboxamide (32 mg, yield: 24%). 1H-NMR (CDCl3, 400 MHz) δ 8.01 (s, 1H), 7.94˜7.98 (m, 2H), 7.58 (s, 1H), 7.51 (m, 2H), 7.19˜7.23 (m, 4H), 7.11˜7.13 (d, J=8.0 Hz, 1H), 6.83˜6.88 (m, 1H), 6.12 (s, 1H), 6.00 (s, 2H), 4.37˜7.41 (m, 2H), 4.12˜4.14 (m, 2H), 3.00 (d, J=4.8 Hz, 3H). MS (M+H)+: 593.

1. filtrationfiltered
2. extractionThe resulting residue was extracted with EtOAc
3. dry with materialThe combined organic phase was dried over Na2SO4
4. concentrationconcentrated in vacuo
5. customThe resulting residue was purified