HCID 68772801, compound → HCID 68777421, compound

Participants

Reaction Steps

A solution of Example 339 (36 mg, 0.065 mmol) in trifluoroacetic acid (10 mL) was heated at reflux for 4 h. The solvent was removed in vacuo and the residue was purified by column chromatography (SiO2, 0-100% EtOAc/heptane) to give the title compound (12 mg, 42%) as an off-white solid. δH (CDCl3) 7.70-7.64 (2H, m), 7.58-7.52 (3H, m), 6.70 (1H, d, J 1.3 Hz), 6.46 (1H, d, J 1.3 Hz), 3.77-3.70 (4H, m), 3.17-3.11 (4H, m), 2.61 (2H, s), 2.45 (2H, s), 1.07 (6H, s). LCMS (ES+) 435.3 (M+H)+.

Provenance & Evidence