Lithium hydroxide, monohydrate → HCID 70157153, compound

Participants

Reaction Steps

The compound of Example 4 (40 mg, 0.088 mmol) in THF (10 ml) and water (5 ml) was stirred at room temperature and lithium hydroxide monohydrate (37 mg, 0.88 mmol) added. The solution was stirred at room temperature for 72 h, then the solvents were removed in vacuo, and the crude white solid partitioned between ethyl acetate (10 ml) and water (10 ml). The water layer was freeze dried and the title compound was obtained as a white solid. 1H NMR (d6 DMSO) δ 8.29 (1H, d, J 5.1 Hz), 7.81 (1H, d, J 5.1 Hz), 7.21 (4H, m), 7.09 (1H, d, J 5.1 Hz), 6.80 (4H, m), .6.52 (1H, t, J 10.0 Hz), 6.42 (1H, t, J 5.8 Hz), 6.39 (1H, d, J 8.6 Hz), 4.42 (1H, t, J 7.9 Hz), 4.34 (2H, s), 2.98 (1H, dd, J 15.6, 8.4 Hz) and 2.77 (1H, dd, J 15.2, 7.5 Hz). MS (ES) m/e 463 [M+H]+.

Provenance & Evidence