Sodium Carbonate → HCID 67186120, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of Example 292 (60 mg, 0.167 mol) in THF (3 mL) and water (1 mL) was added tetra-n-butylammonium bromide (107 mg, 0.334 mmol), sodium carbonate (36 mg, 0.334 mmol), iodopyrazine (69 mg, 0.509 mmol) and tetrakis-(triphenylphosphine)palladium(0) (19 mg, 0.017 mmol). The reaction was heated at 120° C. under microwave irradiation for 20 minutes. The resulting mixture was partitioned between DCM (50 mL) and water (50 mL); the organic phase was washed with brine (50 mL), dried (MgSO4), and concentrated in vacuo. The residue was purified by preparative HPLC (Method 6) to yield the title compound (15 mg, 23%) as an off-white solid. δH (CDCl3) 9.00 (1H, s), 8.75 (1H, d, J 2.1 Hz), 8.60 (1H, dd, J 2.4 and 1.7 Hz), 8.48 (1H, d, J 2.4 Hz), 7.74 (1H, dd, J 8.5 and 2.1 Hz), 7.09 (1H, d, J 8.7 Hz), 5.34 (1H, s), 4.43-4.39 (2H, m), 4.22-4.18 (2H, m), 2.90 (2H, s), 1.41 (6H, s). LCMS (ES+) 394.0 (M+H)+, RT 2.93 minutes (Method 1).

Provenance & Evidence