反应详情

A solution of N-[((5S)-3-{3-fluoro-4-[6-(1-piperazinyl)-3-pyridinyl]phenyl}-2-oxo-1,3-oxazolidin-5-yl)methyl]acetamide (0.147 g, 0.355 mmol), 2-bromo-1-[(2-methyl-2-oxiranyl)methyl]-4-nitro-1H-imidazole (0.092 g, 0.35 mmol) and diisopropylethylamine (70 μL, 0.40 mmol) in ethoxyethanol (10 mL) was refluxed for 2.5 h. The solution was evaporated onto silica gel, column chromatography (0-10% MeOH/EtOAc, gradient elution) gave a solid which was reprecipitated from refluxing MeOH to give the titled compound (25 mg, 12%) as a cream solid. APCI MS m/z 595 (M+H). 1H NMR (400 MHz, DMSO-d6) δ 8.28 (bs, 1H), 8.21 (t, J=5.8 Hz, 1H), 8.12 (s, 1H), 7.70 (bdt, J=9.0, 2.2 Hz, 1H), 7.51-7.59 (m, 2H), 7.37 (dd, J=8.6, 2.2 Hz, 1H), 6.88 (d, J=9.0 Hz, 1H), 4.71-4.79 (m, 1H), 4.29 (d, J=10.7 Hz, 1H), 4.15 (t, J=9.0 Hz, 1H), 4.09 (d, J=10.7 Hz, 1H), 3.77 (dd, J=9.2, 6.5 Hz, 1H), 3.31-3.47 (m, 6H), 2.82 (d, J=14.7 Hz, 1H), 2.78 (d, J=14.7 Hz, 1H), 2.72-2.79 (m, 4H), 1.84 (s, 3H), 1.58 (s, 3H).

1. customThe solution was evaporated onto silica gel, column chromatography (0-10% MeOH/EtOAc, gradient elution)
2. customgave a solid which
3. customwas reprecipitated
4. temperaturefrom refluxing MeOH