Cesium carbonate → HCID 58203729, compound

Participants

Reaction Conditions

Reaction Steps

9-Chloro-2-[2-(2,4-difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azulene (416 mg, 1.0 mmol), 2-Methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine (262 mg, 1.2 mmol), Cs2CO3 (650 mg, 2.0 mmol), Pd(dppf)Cl2 (73 mg, 0.10 mmol) and CH3CN—H2O (1:1, 4 mL) were added in a 10 mL of sealed tube, and the mixture was heated by microwave at 120° C. for 20 min under N2. The reaction mixture was filtered to gather the solution and water was added. The mixture was extracted by DCM (20 mL×3). The combined organic layers were dried over Na2SO4, concentrated in vacuo, and purified by preparative HPLC to give 336 (168.7 mg, yield: 36%). 1HNMR (DMSO-d6, 400 MHz): δ9.04 (s, 1H), 8.28 (s, 1H), 8.16 (d, J=8.4 Hz, 1H), 7.91-7.87 (m, 2H), 7.76-7.71 (m, 1H), 7.48-7.45 (m, 2H), 7.36-7.34 (m, 1H), 7.14 (s, 1H), 4.30 (s, 2H), 3.14 (s, 2H), 2.52 (s, 3H). ESI-MS: m/z=474 [M+H+]

Provenance & Evidence