Vinyl Acetate → HCID 67186185, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of Example 456 (100 mg, 0.227 mmol) in DMF (4 mL) was added vinyl acetate (0.11 mL, 1.13 mmol), triethylamine (0.06 mL, 0.454 mmol), 1,3-bis-(diphenylphosphino)propane (10 mg, 0.023 mmol) and palladium acetate (2.5 mg, 0.011 mmol). The mixture was heated to 140° C. under microwave irradiation for 1 h. The resulting suspension was partitioned between DCM (50 mL) and water (50 mL); the organic fraction 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 (34 mg, 35%) as an off-white solid. δH (CDCl3) 8.72 (1H, d, J 2.1 Hz), 8.65 (1H, d, J 5.4 Hz), 7.84 (1H, dd, J 8.6 and 2.1 Hz), 7.44 (1H, d, J 5.4 Hz), 7.07 (1H, d, J 8.6 Hz), 5.24 (1H, br. s), 4.47-4.28 (2H, m), 4.30-4.11 (2H, m), 2.90 (2H, s), 2.78 (3H, s), 1.41 (6H, s). LCMS (ES+) 408.0 (M+H)+, RT 2.83 minutes (Method 1).

Provenance & Evidence