反应详情

温度

90 °C

To a 25 mL round bottom flask were added (S)-5,5-diethyl-4-phenyloxazolidin-2-one (0.3 g, 1.36 mmol), 4-iodo-N-(quinolin-8-yl)benzamide (0.560 g, 1.5 mmol), Cs2CO3 (0.972 g, 3.0 mmol), X-Phos (35 mg, 0.068 mmol), Pd2(dba)3 (62 mg, 0.068 mmol) and 1,4-dioxane (2 mL). The mixture was purged with N2 gas for 15 minutes. The reaction mixture was then heated at 90° C. for 6 hours. After completion of reaction (monitored by TLC, TLC eluent: 30% EtOAc in hexane), the reaction mixture was cooled to ambient temperature and treated with water (5 mL) and the mixture extracted with EtOAc (5 mL). The aqueous layer was back extracted with EtOAc (5 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated. The crude material was purified with HPLC (column: AG/AD/C18-027, ramping ACN in H2O, 40-50% B, 0-2 minutes, 50-90% B, 2-10 minutes, flow rate 20 mL/min) to afford 50 mg of (S)-4-(5,5-diethyl-2-oxo-4-phenyloxazolidin-3-yl)-N-(quinolin-8-yl)benzamide as a brown solid. 1H NMR (300 MHz, CDCl3) δ: 10.67 (s, 1H), 8.96-8.80 (m, 2H), 8.20 (dd, J=8.3, 1.6 Hz, 1H), 7.99 (d, J=9 Hz, 2H), 7.68 (d, J=8.7 Hz, 2H), 7.62-7.56 (m, 2H), 7.57-7.47 (m, 1H), 7.40-7.36 (m, 3H), 7.28-7.24 (m, 2H), 5.15 (s, 1H), 2.04-1.96 (m, 2H), 1.39-1.20 (m, 2H), 1.12 (t, J=7.5 Hz, 3H), 0.85 (t, J=7.4 Hz, 3H). m/z (ESI) 466.2 (M+H)+.

1. customThe mixture was purged with N2 gas for 15 minutes
2. customAfter completion of reaction (monitored by TLC, TLC eluent: 30% EtOAc in hexane)
3. temperaturethe reaction mixture was cooled to ambient temperature
4. extractionthe mixture extracted with EtOAc (5 mL)
5. extractionThe aqueous layer was back extracted with EtOAc (5 mL)
6. dry with materialThe combined organic layers were dried over anhydrous Na2SO4
7. concentrationconcentrated
8. customThe crude material was purified with HPLC (column: AG/AD/C18-027, ramping ACN in H2O, 40-50% B, 0-2 minutes, 50-90% B, 2-10 minutes, flow rate 20 mL/min)