Cesium carbonate → HCID 89813717, compound

Participants

Reaction Conditions

Reaction Steps

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)+.

Provenance & Evidence